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Posts Tagged ‘Global Temperature’

Image of the Day: No. of Days with Extreme Heat

Posted by feww on August 2, 2018

2017 third-warmest year on record globally

Global land and ocean combined surface temperature reached a near-record high

2017 was the third-warmest year on record globally, behind 2016 (first) and 2015, according to the 28th annual State of the Climate report. The planet also experienced record-high greenhouse gas concentrations as well as rises in sea level.

Sea level rise hit a new high

Highest levels of of greenhouse gases on record

Heat in the upper ocean hit a record high

Record low Arctic maximum sea ice coverage

Record low Antarctic sea ice coverage

Image of the Day: No. of Days with Extreme Heat [NOAA]

 

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January Polar Ice Extents Smallest on Record

Posted by feww on February 18, 2017

January Third Warmest Recorded Globally

Arctic Sea Ice Extent. January sea ice extent was 8.6 percent below the 1981-2010 – the smallest January sea ice extent since satellite records began in 1979.

Antarctic Sea Ice Extent. January sea ice extent was 22.8 percent below the 1981-2010 – the smallest January sea ice extent on record.

Global Temperatures

The globally averaged temperature over land and ocean surfaces for January 2017 was 0.88°C (1.58°F) above the 20th century average of 12.0°C (53.6°F). This was the third highest January temperature in the 1880–2017 record, behind 2016 (highest) and 2007 (second highest).

Global land surface temperature was also third highest for the month of January at 1.54°C (2.77°F) above the 20th century average of 2.8°C (37.0°F).

For the oceans, the globally-averaged temperature departure of +0.65°C (+1.17°F) from the 20th century average was the second highest on record for January, behind 2016.

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for January 2017, published online February 2017, retrieved on February 18, 2017 from http://www.ncdc.noaa.gov/sotc/global/201701.

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FIRE-EARTH Alert: 2016 Warmest Year on Record

Posted by feww on December 31, 2016

  • CJ Members
  • EAC
  • OC Teams

FIRE-EARTH Models Show 2016 Warmest Year on Record (99.8% Certainty)

  • Details are available from FIRE-EARTH PULSARS.

 

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May 2016 Hottest May Since 1880

Posted by feww on June 16, 2016

Combined global temp. for May 2016 rose 0.87°C above the 20th century average

The combined average temperature over global land and ocean surfaces (SST) for May 2016 was the highest for May in the 137-year period of record, at 0.87°C (1.57°F) above the 20th century average of 14.8°C (58.6°F), besting the previous record set in 2015 by 0.02°C (0.04°F). May 2016 marks the 13th consecutive month a monthly global temperature record has been broken—the longest such streak since global temperature records began in 1880. —NOAA

Land. The average global temperature across land surfaces was 1.17°C (2.11°F) above the 20th century average of 11.1°C (52.0°F)—the third highest May temperature on record, behind 2012 (+1.26°C / +2.27°F) and 2015 (+1.21°C / +2.18°F).

SST. The May globally-averaged sea surface temperature was 0.76°C (1.37°F) above the 20th century average of 16.3°C (61.3°F). This was the highest for May on record, besting the previous record set in 2015 by 0.05°C (0.09°F).

May 2016 Selected Climate Anomalies and Events Map

January – May

The average global land and SST for January–May 2016 was the warmest on record across the world at 1.08°C (1.94°F) above the 20th century average of 13.1°C (55.5°F), surpassing the previous record set in 2015 by 0.24°C (0.43°F).

Much-warmer-than-average conditions engulfed the vast majority of the world’s land surfaces, resulting in a record warm January–May period at 1.85°C (3.33°F) above the 20th century average of 6.0°C (42.8°F), besting the previous record set in 2015 by 0.45°C (0.81°F).

The average global SST for the year-to-date was the highest for January–May in the 137-year period of record, at 0.80°C (1.44°F) above average surpassing the previous record set in 2015 by 0.16°C (0.29°F). Record warm sea surface temperature during January–May 2016 was present across much of the Indian Ocean and Southwest Pacific Ocean, with scattered areas across the Atlantic Ocean and the tropical Pacific Ocean.

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for May 2016, published online June 2016, retrieved on June 16, 2016 from http://www.ncdc.noaa.gov/sotc/global/201605.

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Highest March Temperatures Since Records Began

Posted by feww on April 21, 2016

Global Temperature in March a record 1.22°C warmer 

The global temperature for March 2016 was the highest for this month in the 1880–2016 record, at 1.22°C (2.20°F) above the 20th century average of 12.7°C (54.9°F), NOAA reported

  • This tops the previous record for the combined average temperature for global land and ocean surfaces set in 2015 by 0.32°C (0.58°F).
  • It’s also the highest monthly temperature departure among all 1,635 months on record.
  • The nine highest monthly temperature departures in the record have all occurred in the past nine months.
  • March 2016 also marks the 11th consecutive month a monthly global temperature record has been broken, the longest such streak in NOAA’s 137 years of record keeping.

The average global temperature across land surfaces was 2.33°C (4.19°F) above the 20th century average of 3.2°C (37.8°F), the highest March temperature on record, topping March record set in 2008 by 0.43°C (0.77°F).

  • Most of northwestern Canada and Alaska, along with vast regions of northern and western Asia, observed temperatures at least 3°C (5°F) above their 1981–2010 average.
  • The mean March temperature for Australia was the highest in the country’s 107-year period of record, at 1.70°C (3.06°F) higher than the 1961–1990 average.
  • Arctic temperature over land for 66°–90°N overall was 3.34°C (6.01°F) higher than the 1981‐2010 average… the second highest March, 0.03°C (0.05°F) lower than the record set in 2011.
  • Norway was 3.0°C (5.4°F) warmer than its 1961–1990 average.

March globally averaged SST remained 0.81°C (1.46°F) above the 20th century monthly average… highest global ocean temperature for March in the 1880–2016 record, surpassing the previous record set in 2015 by 0.18°C (0.32°F)

March 2016 Selected Climate Anomalies and Events Map

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January – March period

January – March 2016 were the warmest such period on record (global land and SST), at 1.15°C (2.07°F) above the 20th century average of 12.3°C (54.1°F), surpassing the previous record set in 2015 by 0.28°C (0.50°F)

  •  January–March 2016 marked the highest departure from average for any three-month period on record.
  • This record has been broken for seven consecutive months, since the July–September 2015 period.

January–March SST was the highest on record, at 0.82°C (1.48°F) above average… and 0.21°C (0.38°F) above previous records set in 2010 and 2015.

The average land surface temperature was also record high for the period, at 2.05°C (3.69°F) above average, surpassing the previous record set in 2015 by 0.47°C (0.85°F).

Source: NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for March 2016, published online April 2016, retrieved on April 21, 2016 from http://www.ncdc.noaa.gov/sotc/global/201603.

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2015 Earth’s Warmest Year by Widest Margin on Record

Posted by feww on January 20, 2016

Warmest December makes 2015 warmest year on record: NOAA

The 2015 globally averaged temperature over land and ocean surfaces was the highest on record since 1880. The December combined global land and ocean average surface temperature was the highest on record for any month in the 136-year record, reported NOAA.

Global highlights: Calendar Year 2015

The 2015 average temperature across global land and ocean surfaces was 1.62°F (0.90°C) above the 20th century average.

  • It is the warmest among all 136 years in the 1880–2015 record.
    • Fourth time a global temperature record has been set this century.
    • Largest margin by which the annual global temperature record has been broken.
    • Ten months had record high temperatures for their respective months during the year.
    • The five highest monthly departures from average for any month on record all occurred during 2015.
  • During 2015, the globally-averaged land surface temperature was 2.39°F (1.33°C) above the 20th century average. This was the highest among all years in the 1880–2015 record, surpassing the previous record of 2007 by 0.45°F (0.25°C). This is the largest margin by which the annual global land temperature has been broken.
  • During 2015, the globally-averaged sea surface temperature was 1.33°F (0.74°C) above the 20th century average. This was the highest among all years in the 1880–2015 record, surpassing the previous record of last year by 0.20°F (0.11°C).
  • The 1901-2000 average combined land and ocean annual temperature is 13.9°C (56.9°F), the annually averaged land temperature for the same period is 8.5°C (47.3°F), and the long-term annually averaged sea surface temperature is 16.1°C (60.9°F).

Global highlights: December 2015

December average temperature across global land and ocean surfaces was 2.00°F (1.11°C) above the 20th century average of 12.2°C (54.0°F). This was the highest for December in the 1880–2015 record.

  • The globally-averaged land surface temperature was 3.40°F (1.89°C) above the 20th century average. This was the highest for December in the 1880–2015 record.
  • The globally-averaged sea surface temperature was 1.49°F (0.83°C) above the 20th century average, also the highest for December in the 1880–2015 record.

Sixteen Warmest Years (1880–2015)

All but one of the 16 warmest year on record (1998 tied with 2009 for the 6th warmest) have occurred this century.

Source:
NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for Annual 2015, published online January 2016, retrieved on January 20, 2016 from http://www.ncdc.noaa.gov/sotc/global/201513.

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2015 Could Become Warmest Year on Record

Posted by feww on December 18, 2015

Three More Global Temperature Records Broken —NOAA

State of the Climate Report: November 2015

  • November 2015 was warmest November on record Globally
  • September–November was the warmest such period
  • Year-to-date was record warm

The November average temperature across land and ocean surfaces (SST) rose  1.75°F (0.97°C) above the 20th century average of 12.9°C (55.2°F), the highest for November in the 1880–2015 record, surpassing the previous record set in 2013 by 0.27°F (0.15°C).

  • November warmth broke a monthly global temperature record for the seventh consecutive month.
  • The temperature departure from average for November is also the second highest among all months in the 136-year period of record. The highest departure of 0.99°C (1.79°F) occurred last month.
  • Globally-averaged land surface temperature for November was 2.36°F (1.31°C) above the 20th century average.
  • Globally-averaged SST was 1.51°F (0.84°C) above the 20th century average. This was the highest for November in the 1880–2015 record, surpassing the previous record set last year by 0.36°F (0.20°C).
  • The average Arctic sea ice extent for November 2015 was 360,000 square miles (~ 930,000km² ), or 8.3 percent below the 1981–2010 average. This was the sixth smallest November extent since records began in 1979.
  • Antarctic sea ice extent during November 2015 was 80,000 square miles (1.2 percent) above the 1981–2010 average, the 14th largest for November in the 37-year period of record.


November 2015 Blended Land and Sea Surface Temperature Anomalies in degrees Celsius

Autumn Temperatures

Additionally, September, October, and November 2015 had the three highest monthly temperature departures on record.

Out of 1,630 monthly records (1880–2015 record):

  • Eight months of 2015 are among the 10 highest monthly temperature departures from their respective averages.
  • All 11 months of 2015  so far are among the 25 highest.


Selected Climate Events & Anomalies for November 2015

September–November  Temperature

The September–November seasonal temperature was 0.96°C (1.73°F) above the 20th century average of 14.0°C (57.1°F). This marks the highest departure from average for the season in the 136-year period of record, surpassing the previous record set last year by 0.21°C (0.38°F).

The globally-averaged temperature across land surfaces was also the highest on record for September–November, at 1.27°C (2.29°F) above the 20th century average of 9.1°C (48.3°F).

  • Most of the Americas from Mexico through the northern half of South America were record warm, as were scattered regions across Africa, southern and southeastern Asia, and southern Australia.
  • Across the world’s oceans, the September–November average sea surface temperature was 0.84°C (1.51°F) above the 20th century average of 16.0°C (60.7°F), the highest for September–November on record, surpassing the previous record set last year by 0.27°C (0.15°F).

Year-to-date Temperature

The first 11 months of 2015 were the warmest such period on record across the world’s land and ocean surfaces, at 0.87°C (1.57°F) above the 20th century average of 14.0°C (57.2°F), surpassing the previous record set last year by 0.14°C (0.25°F).

  • Nine of the first eleven months in 2015 have been record warm for their respective months, with January second warmest for January and April third warmest.
  • The December global temperature would have to be at least 0.81°C (1.46°F) below average—or 0.24°C (0.43°F) colder than the current record low December temperature of 1916—for 2015 to not become the warmest year in the 136-year period of record.

The average global sea surface temperature for the year-to-date was the highest for January–November in the 136-year period of record, at 0.72°C (1.30°F) above average, surpassing the previous record set last year by 0.09°C (0.16°F).

The average land surface temperature was also record high, at 1.27°C (2.29°F) above average, surpassing the previous record of 2010 by 0.15°C (0.27°F).


January–November 2015 Blended Land and Sea Surface Temperature Percentiles

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for November 2015, published online December 2015, retrieved on December 18, 2015 from http://www.ncdc.noaa.gov/sotc/global/201511.

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October Temperature Breaks Global Record

Posted by feww on November 19, 2015

October 2015 warmest October on 136-year record globally; year to date also record warm —NOAA

Global October temperature was the highest for the month in the 136-year period of record. The combined average temperature over global land and sea surfaces was 0.98°C (1.76°F) above the 20th century average of 14.0°C (57.1°F), according to the State of Climate report issued by NOAA.

  • October was the sixth consecutive month a monthly global temperature record has been broken and was also the greatest departure from average for any month in the 1,630 months of recordkeeping.
  • The October average temperature across global land surfaces was 1.33°C (2.39°F) above the 20th century average, the highest for October on record. This surpasses the previous record set in October 2011 by 0.17°C (0.31°F).
  • October global sea surface temperature was 0.85°C (1.53°F) above the 20th century average of 15.9°C (60.6°F), the highest departure for October on record. This surpasses the previous record set in 2014 by 0.15°C (0.27°F).


October 2015 Blended Land and Sea Surface Temperature Percentiles


January–October 2015 Blended Land and Sea Surface Temperature Anomalies in degrees Celsius

Record Temperatures (Year to Date)

The first 10 months of 2015 comprised the warmest such period on record across the world’s land and ocean surfaces, at 0.86°C (1.55°F) above the 20th century average, surpassing the previous record of 2014 by 0.12°C (0.22°F). This margin is larger than the uncertainty associated with the dataset. To date, eight months this year have been record warm for their respective months. January was the second warmest January on record and April third warmest.

The average global sea surface temperature of +0.71°C (+1.28°F) was the highest for January–October in the 136-year period of record, surpassing the previous record of 2014 by 0.08°C (0.14°F). This margin is larger than the uncertainty associated with the dataset. The average land surface temperature departure from average of +1.28°C (+2.30°F) was also the highest on record for October, surpassing the previous record of 2007 by 0.17°C (0.31°F).

Source: NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for October 2015, published online November 2015, retrieved on November 19, 2015 from http://www.ncdc.noaa.gov/sotc/global/201510.

 

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Record High Global Temperature in September, January–September

Posted by feww on October 22, 2015

Each of global oceans and global land temperatures also highest on record for the periods: NCDC/NOAA

State of the Climate Report – Blog Summary of Global highlights: September 2015

  • The combined average temperature for global land and ocean surfaces in September 2015 was the highest for September in the 136-year period of record, at 0.90°C (1.62°F) above the 20th century average of 15.0°C (59.0°F).  It surpassed previous record set in 2014 by 0.19°C.
    • September’s high temperature was also the greatest rise above average for any month in the 136-year historical record, surpassing the previous record set in both February and March this year by 0.02°F (0.01°C).
    • Seven months this year, including the past five, have been record warm for their respective months. January was the second warmest January on record and April third warmest.
  • The September globally-averaged land surface temperature was 1.16°C above the 20th century average. This was also the highest for September in the 1880–2015 record.
    • Record warmth was observed across much of South America and parts of Africa, the Middle East, Europe, and Asia.
  •  September globally-averaged sea surface temperature was 0.81°C (1.46°F) above the 20th century average of 16.2°C (61.1°F), the highest departure for September on record, beating the previous record set last year by 0.07°C (0.13°F).

Blog Summary of Global highlights: Year-to-date (January–September 2015)

  • The year-to-date temperature across global land and ocean surfaces was 0.85°C above the 20th century average. This was the highest for January–September in the 1880–2015 record, surpassing the previous record set in 2014 by 0.12°C.
  • The year-to-date globally-averaged land surface temperature was also the highest for January–September in the 1880–2015 record at 1.29°C above the 20th century average. This value surpassed the previous record of 2007 by 0.17°C.
  • The year-to-date globally-averaged sea surface temperature was 0.69°C above the 20th century average and the highest for January–September in the 1880–2015 record. This value surpassed the previous record of 2010 by 0.06°C.

Precipitation

September rainfall across Australia was the third lowest for the month in the 116-year period of record. At only 6.2 mm, it was 37 percent of average precipitation.

The Southwest Monsoon rainfall in India, for the seasonal period June 1st to September 30th, was 86 percent of the 1951–2000 average. About half of India received deficient rainfall (less than 80 percent of average).

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for September 2015, published online October 2015, retrieved on October 22, 2015 from http://www.ncdc.noaa.gov/sotc/global/201509.

State of the Climate Report – Blog Summary of Global highlights: August 2015

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Record High Global Temperature

Posted by feww on September 18, 2015

Global temperature at record high in August, June–August, January–August

Each of global land temperature, SST also highest on record for same periods

The combined average temperature for global land and ocean surfaces (SST) for August 2015 was 0.88°C (1.58°F) above the 20th century average of 15.6°C (60.1°F) and the highest August in the 136-year record, according to the latest State of the Climate Report prepared by NCDC/NOAA.

  • August was the sixth month in 2015 that broke the monthly temperature record (February, March, May, June, July, and August).
  • August 2015 tied with January 2007 as the third warmest monthly departure from average for any of the 1,628 months since records began in January 1880, behind February 2015 and March 2015 (+0.89°C / +1.60°F).
  • Five of the ten largest monthly temperature departures from average have occurred in 2015.

Global land surface temperature for August

The average global land surface temperature for August 2015 was 1.14°C (2.05°F) above the 20th century average—the highest August value in the 1880–2015 record, exceeding the previous record set in 1998 by +0.13°C (+0.23°F).

SST for August

The August 2015 globally-averaged SST was 0.78°C (1.40°F) above the 20th century average—the highest temperature for any month in the 1880–2015 record and surpassing the previous record set in July 2015 by 0.04° (0.07°F).

Combined average land temp. and SST (June-August)

Global land and SST temperature for June–August was 0.85°C (1.53°F) above the 20th century average, surpassing the previous record set in 2014 by 0.11°C (0.20°F). June–August 2015 tied with February–April 2015 as the second warmest three-month period temperature departure from average, behind January–March 2015 (+0.86°C / +1.55°F).

  • Much of the world’s land surface was much-warmer-than-average.
  • Much of South America and parts of the western contiguous U.S. and parts of Africa and Asia experienced record high temperatures.

Global land surface temperature for (June–August)

Average global land surface temperature was 1.10°C (1.98°F) above the 20th century average—the highest for June–August in the 1880–2015 record and topping the previous record set in 2010 by 0.07°C (0.13°F).

SST for (June–August)

The globally-averaged SST for the three-month period was 0.75°C (1.35°F) above the 20th century average and the highest departure from average for the season on record. This value exceeded the previous record set in 2014 by 0.06°C (0.11°F).

  • A large swath across the eastern and central tropical Pacific Ocean and parts of the Indian and Atlantic experienced record warm.
  • A patch of much-cooler-than-average temperatures observed across the North Atlantic Ocean.

Global land and SST (January–August period)

Global land and SST temperature during the first eight months of 2015, January–August period, was the highest ever recorded at 0.84°C (1.51°F) above the 20th century average, exceeding the previous record set in 2010 by 0.10°C (0.18°F).

  • Much of South America and parts of North America, Africa, Europe, and Asia had record warmth.
  • A large portion of the northeastern and equatorial Pacific Ocean observed record warmth.
  • Other major basins observed record warmth in some areas.

Global land temperature for January–August 2015 was 1.29°C (2.32°F) above the 20th century average—the highest January–August during 1880–2015 record and topping the previous record set in 2007 by 0.16°C (0.29°F).

SST for the same period was 0.68°C (1.22°F) above the 20th century average and the highest January–August on record, surpassing the previous record set in 2014 by 0.07°C (0.13°F).

Sea ice extent for August 2015

August average Arctic sea ice extent was 1.61 million square kilometers (620,000 square miles), or about 22.3 percent below the 1981–2010 average, making it the fourth smallest August extent since records began in 1979.

Antarctic sea ice extent during August 2015 was 77,700 square kilometers (30,000 square miles), or about 0.5 percent below the 1981–2010 average.

  • In contrast, Antarctic sea ice extent has been record/ near-record large in recent years.
  • First month since November 2011 that the Antarctic sea ice extent was below average.

Source: NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for August 2015, published online September 2015, retrieved on September 18, 2015 from http://www.ncdc.noaa.gov/sotc/global/201508.

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Record Warm June, First Half of 2015

Posted by feww on July 22, 2015

Record-breaking temps. over global land & oceans in June, 1st half of 2015, past 12 months

First half of 2015 was record warm for the globe, while June 2015 was warmest June on record, with global land areas and oceans each breaking previous records, according to The State of the Climate Report issued by NCDC/NOAA.

The following are some of the key highlights from the report:

Global highlights: Year-to-date (January–June 2015)

The globally averaged temperature across  land and ocean surfaces (SST) was  0.85°C (1.53°F) above the 20th century average, which was the highest for the 6-month period in the 1880–2015 record, surpassing the 2010 record by 0.09°C (0.16°F).

NOTES:
The
globally-averaged land and SST temperature for January to June 2010 was 14.2°C  (57.5°F), or 0.68°C (1.22°F) above the 20th century average.
The 20th century average land surface and SST temperature for January to June period, as quoted in 2014, was of 13.5°C (56.3°F)

The globally-averaged land surface temperature was 1.40°C (2.52°F) above the 20th century average, which was the highest for January–June in 136-year record, surpassing the 2007 record by 0.13°C  (0.23°F).

The globally-averaged SST was 0.65°C  (1.17°F) above the 20th century average, which was the highest for the 6-month period in the 1880–2015 record, surpassing the 2010 record by 0.07°F (0.04°C).

Global highlights: June 2015

The combined average temperature over global land and ocean surfaces for June 2015 was the highest for June in the 136-year period of record, at 0.88°C (1.58°F) above the 20th century average of 15.5°C (59.9°F), surpassing the previous record set just one year ago by 0.12°C (0.22°F). This was also the fourth highest monthly departure from average for any month on record. The two highest monthly departures from average occurred earlier this year in February and March, both at 0.90°C (1.62°F) above the 20th century average for their respective months, while January 2007 had the third highest, at 0.89°C (1.60°F) above its monthly average.

The average global temperature across land surfaces was 1.26°C (2.27°F) above the 20th century average of 13.3°C (55.9°F), the highest June temperature on record, surpassing the 2012 record by 0.06°C (0.11°F).

The global sea surface temperature for June was 0.74°C (1.33°F) above the 20th century average of 16.4°C (61.5°F), the highest for June on record, surpassing the 2014 record by 0.06°C (0.11°F). [This also tied with September 2014 as the highest monthly departure from average for any month for the globally-averaged sea surface temperature. Nine of the ten highest monthly departures from average have occurred since May 2014.]

June 2015 also marks the fourth month this year that has broken its monthly temperature record, along with February, March, and May. The other months of 2015 were not far behind: January was second warmest for its respective month and April was third warmest. These six warm months combined with the previous six months (four of which were also record warm) to make the period July 2014–June 2015 the warmest 12-month period in the 136-year period of record, surpassing the previous record set just last month (June 2014–May 2015). 

Rank
1 = Warmest
Period of Record:
1880–2015
12-month Period Anomaly °C Anomaly °F
1 July 2014–June 2015 0.83 1.49
2 June 2014–May 2015 0.82 1.48
3 May 2014–April 2015 0.81 1.46
4 April 2014–March 2015 0.80 1.44
5 March 2014–February 2015 0.79 1.42
6 (tie) January–December 2014 0.78 1.40
6 (tie) February 2014–January 2015 0.78 1.40
8 December 2013–November 2014 0.77 1.39
9 November 2013–October 2014 0.74 1.33
10 (tie*) October 2013–September 2014 0.73 1.31

*ties with four other 12-month periods.  NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for June 2015, published online July 2015, retrieved on July 22, 2015 from http://www.ncdc.noaa.gov/sotc/global/201506.

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First Half of 2015 Record Warm Globally

Posted by feww on July 22, 2015

Global land and oceans both record warm for June

First half of 2015 was record warm for the globe, while June 2015 was warmest June on record, with global land areas and oceans each breaking previous records, according to The State of the Climate Report issued by NCDC/NOAA.

The following are some of the key highlights from the report:

Global highlights: Year-to-date (January–June 2015)

The globally averaged temperature across  land and ocean surfaces (SST) was  0.85°C (1.53°F) above the 20th century average, which was the highest for the 6-month period in the 1880–2015 record, surpassing the 2010 record by 0.09°C (0.16°F).

NOTES:
The
globally-averaged land and SST temperature for January to June 2010 was 14.2°C  (57.5°F), or 0.68°C (1.22°F) above the 20th century average.
The 20th century average land surface and SST temperature for January to June period, as quoted in 2014, was of 13.5°C (56.3°F)

The globally-averaged land surface temperature was 1.40°C (2.52°F) above the 20th century average, which was the highest for January–June in 136-year record, surpassing the 2007 record by 0.13°C  (0.23°F).

The globally-averaged SST was 0.65°C  (1.17°F) above the 20th century average, which was the highest for the 6-month period in the 1880–2015 record, surpassing the 2010 record by 0.07°F (0.04°C).

Global highlights: June 2015

The combined average temperature over global land and ocean surfaces for June 2015 was the highest for June in the 136-year period of record, at 0.88°C (1.58°F) above the 20th century average of 15.5°C (59.9°F), surpassing the previous record set just one year ago by 0.12°C (0.22°F). This was also the fourth highest monthly departure from average for any month on record. The two highest monthly departures from average occurred earlier this year in February and March, both at 0.90°C (1.62°F) above the 20th century average for their respective months, while January 2007 had the third highest, at 0.89°C (1.60°F) above its monthly average.

The average global temperature across land surfaces was 1.26°C (2.27°F) above the 20th century average of 13.3°C (55.9°F), the highest June temperature on record, surpassing the 2012 record by 0.06°C (0.11°F).

The global sea surface temperature for June was 0.74°C (1.33°F) above the 20th century average of 16.4°C (61.5°F), the highest for June on record, surpassing the 2014 record by 0.06°C (0.11°F). [This also tied with September 2014 as the highest monthly departure from average for any month for the globally-averaged sea surface temperature. Nine of the ten highest monthly departures from average have occurred since May 2014.]

June 2015 also marks the fourth month this year that has broken its monthly temperature record, along with February, March, and May. The other months of 2015 were not far behind: January was second warmest for its respective month and April was third warmest. These six warm months combined with the previous six months (four of which were also record warm) to make the period July 2014–June 2015 the warmest 12-month period in the 136-year period of record, surpassing the previous record set just last month (June 2014–May 2015). 

Rank
1 = Warmest
Period of Record:
1880–2015
12-month Period Anomaly °C Anomaly °F
1 July 2014–June 2015 0.83 1.49
2 June 2014–May 2015 0.82 1.48
3 May 2014–April 2015 0.81 1.46
4 April 2014–March 2015 0.80 1.44
5 March 2014–February 2015 0.79 1.42
6 (tie) January–December 2014 0.78 1.40
6 (tie) February 2014–January 2015 0.78 1.40
8 December 2013–November 2014 0.77 1.39
9 November 2013–October 2014 0.74 1.33
10 (tie*) October 2013–September 2014 0.73 1.31

*ties with four other 12-month periods.  NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for June 2015, published online July 2015, retrieved on July 22, 2015 from http://www.ncdc.noaa.gov/sotc/global/201506.

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Earth’s Fever Continues: Warmest May on Record

Posted by feww on June 19, 2015

Year-to-date also record warm: Report

The globally averaged temperature over land and ocean surfaces for May 2015 was 15.67°C (60.17°F), the highest for the month since record keeping began in 1880. Globally averaged temperature for March–May and the year-to-date (January–May) were also record highs, according to the State of the Climate Report.

  • The combined average temperature across global land and ocean surfaces for May was 0.87°C (1.57°F) above the 20th century average of 14.8°C (58.6°F)—the highest for May in the 136-year period of record, topping the previous record set in 2014 by 0.08°C (0.14°F).
  • The globally-averaged sea surface temperature was 0.72°C (1.30°F) above the 20th century average of 16.3°C (61.3°F)—the highest ever recorded for the month, topping record set in 2014 by 0.07°C (0.13°F).
  • The average global temperature across land surfaces was 1.28°C (2.30°F) above the 20th century average of 11.1°C (52.0°F), tying with 2012 as the highest May temperature on record.
  • The average Arctic sea ice extent for May was about 1.89 million km² (730,000 square miles), or 5.5 percent below the 1981–2010 average, making it the third smallest May extent since records began in 1979.  [The smallest sea ice extent occurred in May 2004, when the cover shrank to about 1.82million km² (703,000 square miles,) said the report
  • Antarctic sea ice during May was about 1.3 million km² (500,000 square miles), or 12.1 percent above the 1981–2010 average. The May extent was the largest Antarctic sea ice extent on record, exceeding the previous record set in 2014 by about 52,000km² (20,000 square miles).

January – May 2015

  • The first five months of 2015 were the warmest such period on record across the world’s land and ocean surfaces, at 0.85°C (1.53°F) above the 20th century average, surpassing the previous record set in 2010 by 0.09°C (0.16°F).

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for May 2015, published online June 2015, retrieved on June 19, 2015 from http://www.ncdc.noaa.gov/sotc/global/201505.

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January–April Global Temperature Highest Ever Recorded

Posted by feww on May 20, 2015

Global temperature rises to a new record across land and ocean surfaces: Report

During January–April 2015, the average temperature across global land and ocean surfaces was 0.80°C (1.44°F) above the 20th century average—the highest for the period since 1880, NCDC reported.

Global highlights: Year-to-date (January–April 2015)

  • The January–April globally-averaged land surface temperature was 1.48°C  (2.66°F) above the 20th century average—the highest for the period since records began in 1880.
  • The globally-averaged sea surface temperature for the period was 0.55°C (0.99°F) above the 20th century average, tying  with 2010 as the second highest for January–April on record, trailing 1998 by 0.04°F (0.02°C).

Global highlights: April 2015

  • The April globally-averaged sea surface temperature (SST) was 0.60°C (1.08°F) above the 20th century average—the highest for April ever recorded, said NCDC.
  • April’s average temperature across global land and ocean surfaces was 0.74°C (1.33°F) above the 20th century average, making it the fourth highest for April on record.
  • The April globally-averaged land surface temperature was 1.11°C (2.00°F) above the 20th century average, making it the 10th highest for April in the 1880–2015 record.

Polar Icecaps

  • The average Arctic sea ice extent for April was more than 800,000 square kilometers ( 310,000 square miles) about 5.5 percent below the 1981–2010 average, or the second smallest April extent since records began in 1979, the National Snow and Ice Data Center (NSIDC) reported. The 2007 April extent was 78,000 square kilometers (30,000 square miles) smaller.
  • Antarctic sea ice in April was 1,657,000 square kilometers (640,000 square miles) about 22.4 percent above the 1981–2010 average, making it the largest April Antarctic sea ice extent on record, surpassing the previous record of 2014 by 26,000 square kilometers (10,000 square miles).

Source: NOAA National Climatic Data Center, State of the Climate: Global Analysis for April 2015, published online May 2015, retrieved on May 20, 2015 from http://www.ncdc.noaa.gov/sotc/global/201504.

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Warmest Ever: March and Q1, 2015

Posted by feww on April 18, 2015

Record low Arctic sea ice extent for March

Globally averaged temperature over land and ocean surfaces (SST) for March 2015 was the highest for the month since record keeping began 135 years ago. The average temperature was also record high for the first quarter of the year, said the State of the Climate report.

Global Highlights: March 2015

  • Globally averaged temperature for land and SST was 1.53°F (0.85°C) above the 20th century average, the highest for March in the 1880–2015 record, surpassing the previous record of 2010 by 0.09°F (0.05°C).
    • Globally-averaged land surface temperature was 2.97°F (1.65°C) above  average, tied  with 1990 as the second highest for the month on record.
    • SST was 0.99°F (0.55°C) above average, third highest ever recorded for March (1880–2015).
  • The average Arctic sea ice extent for March was 430,000 square miles (7.2 percent) below the 1981–2010 average—the smallest March extent since records began in 1979 (NSIDC).
  • Antarctic sea ice during March was 420,000 square miles (24.3 percent) above the 1981–2010 average— second largest March Antarctic sea ice extent on record.
    • The record largest March Antarctic sea ice extent occurred in 2008 and was 100,000 square miles larger than the March 2015 extent. [1 square mile ~ 2.6km²]

March 2015 Selected Climate Anomalies and Events Map (NOAA)

Global highlights: Year-to-date (January–March 2015)

  • Globally averaged temperature for land and SST was 1.48°F (0.82°C) above the 20th century average, the highest for the first quarter in the 1880–2015 record, surpassing the previous record of 2002 by 0.09°F (0.05°C).
  • Globally-averaged land surface temperature was 2.86°F (1.59°C) above the 20th century average, the highest for January–March on record, surpassing the previous record of 2002 by 0.09°F (0.05°C)
  • SST for Q1 was 0.95°F (0.53°C) above the 20th century average, the third highest for January–March in the 1880–2015 record.

NOAA National Climatic Data Center, State of the Climate: Global Analysis for March 2015, published online April 2015, retrieved on April 18, 2015 from http://www.ncdc.noaa.gov/sotc/global/2015/03.

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Year-to-Date Global Temperature Highest on Record

Posted by feww on December 16, 2014

DISASTERS CAUSED BY CLIMATE CHANGE
EXTREME WEATHER EVENTS
RISING TEMPERATURES
EXTREME WET & EXTREME DRY CONDITIONS
ECOLOGICAL COLLAPSE
SPECIES EXTINCTION 
MAIN SCENARIOS: 900, 888, 808, 800, 797,  777, 666, 560, 555, 444, 300, 123, 117, 114, 111, 101, 100, 097, 090, 080, 078, 071, 067, 066, 047, 033, 027, 025, 024, 023, 022, 012, 011, 09, 04, 03, 02, 01
.

November 2014 global temperature ties for seventh highest on record: NOAA

The first 11 months of 2014 was the warmest such period on record, with a combined global land and ocean average surface temperature of 1.22°F (0.68°C) above the 20th century average of 57.0°F (13.9°C), surpassing the previous record set in 2010 by 0.02°F (0.01°C), according to NOAA National Climatic Data Center, State of the Climate report.

Global temperature highlights:

Year-to-date

  • The global ocean surface temperature for the year-to-date was 1.03°F (0.57°C) above the 20th century average, the warmest such period on record.
  • The January–November global land surface temperature was 1.71°F (0.95°C) above the 20th century average, the sixth warmest such period on record.

2014 is currently on track to be the warmest year on record should the December global temperature stay at least 0.76°F (0.42°C) above its 20th century average.

ytd global temperature
2014 End-of-Year Global Temperature scenarios: Source: NCDC/NOAA

Global temperature highlights:

September–November

  • The combined average temperature for global land and ocean surfaces for September–November was the highest on record for this period, at 1.26°F (0.70°C) above the 20th century average of 57.1°F (14.0°C).
  • The September–November global sea surface temperature was 1.13°F (0.63°C) above the 20th century average of 60.7°F (16.0°C), the highest for September–November on record.
  • The global land temperature was the ninth highest for September–November on record, at 1.62°F (0.90°C) above the 20th century average of 48.3°F (9.1°C). The margin of error is ±0.31°F (0.17°C).

Details posted at: NOAA National Climatic Data Center, State of the Climate: Global Analysis for November 2014, published online December 2014, retrieved on December 16, 2014 from http://www.ncdc.noaa.gov/sotc/global/2014/11

[Note: Global report will be released on Wednesday December 17th at 11:00 am EST.]

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Global Temperature Breaks October Record: Report

Posted by feww on November 29, 2014

EXTREME WEATHER & CLIMATIC DISASTERS
RISING TEMPERATURES
EXTREME WET & EXTREME DRY CONDITIONS
ECOLOGICAL COLLAPSE
SPECIES EXTINCTION 
MAIN SCENARIOS: 900, 888, 808, 800, 797,  777, 666, 560, 555, 444, 300, 123, 117, 114, 111, 101, 100, 097, 090, 080, 078, 071, 067, 066, 047, 033, 027, 025, 024, 023, 022, 012, 011, 09, 04, 03, 02, 01
.

Average Global Temperature Breaks October Record: NOAA

The combined average temperature for global land and ocean surfaces (SST) broke the October record last month, at 0.74°C (1.33°F) above the 20th century average of 14.0°C (57.1°F), reported NCDC/NOAA.

Global Highlights

  • Combined average temperature for global land and ocean surfaces for October 2014 broke the month’s record, at 0.74°C (1.33°F) above the 20th century average of 14.0°C (57.1°F).
  • October global SST was 0.62°C (1.12°F) above the 20th century average of 15.9°C (60.6°F), breaking October record.
  • Land surface temperature rose 1.05°C (1.89°F) above the 20th century average of 9.3°C (48.7°F)—the fifth highest recorded for October.
  • Combined global land and ocean average surface temperature for January–October period (year-to-date) was 0.68°C (1.22°F) above the 20th century average of 14.1°C (57.4°F).
  • The first ten months of 2014 were the warmest such period on record, with records dating back to 1880.
  • October was the third consecutive month and fifth of the past six with a record high global temperature for its respective month (July was fourth highest).
  • 2014 is currently on track to be the warmest year on record.

October saw extreme wet and extreme dry conditions scattered across the globe.

The most recent 12-month period, November 2013–October 2014, broke the record (set just last month) for the all-time warmest 12-month period in the 135-year period of record, at 0.68°C (1.22°F) above average, with November 2013 and May, June, August, September, and October 2014 all record warm for their respective months. (originally published as 0.69°C, corrected 20 Nov 2014)

Details posted at: NOAA National Climatic Data Center, State of the Climate: Global Analysis for October 2014, published online November 2014, retrieved on November 28, 2014 from http://www.ncdc.noaa.gov/sotc/global/2014/10.

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Global Temperature Reaches Record High in September: NOAA

Posted by feww on October 21, 2014

EXTREME WEATHER & CLIMATIC DISASTERS
RISING TEMPERATURES
ECOLOGICAL COLLAPSE
SPECIES EXTINCTION 
MAIN SCENARIOS 900, 808, 800, 797,  777, 666, 555, 444, 300, 123, 111, 101, 090, 067, 066, 033, 011, 04, 03, 02, 01
.

Global temperature breaks September record; ties record highest for January-September

The combined average temperature over global land and ocean surfaces reached a record high for September, at 0.72°C (1.30°F) above the 20th century average of 15.0°C (59.0°F), according to  NOAA National Climatic Data Center (NCDC).

Additionally, the first nine months of 2014 (January–September) tied with 1998 as the warmest such period on record, with a combined global land and ocean average surface temperature 0.68°C (1.22°F) above the 20th century average of 14.1°C (57.5°F), said NCDC.

If 2014 maintains this temperature departure from average for the remainder of the year, it will be the warmest calendar year on record. The past 12 months—October 2013–September 2014—was the warmest 12-month period among all months since records began in 1880, at 0.69°C (1.24°F) above the 20th century average. This breaks the previous record of +0.68°C (+1.22°F) set for the periods September 1998–August 1999, August 2009–July 2010; and September 2013–August 2014.

Global Highlights

  • The combined average temperature over global land and ocean surfaces for September 2014 was the highest on record for September, at 0.72°C (1.30°F) above the 20th century average of 15.0°C (59.0°F).
  • The global land surface temperature was 0.89°C (1.60°F) above the 20th century average of 12.0°C (53.6°F), the sixth highest for September on record.
  • Heating Ocean. The September global sea surface temperature was 0.66°C (1.19°F) above the 20th century average of 16.2°C (61.1°F), the highest on record for September and also the highest on record for any month.
  • The combined global land and ocean average surface temperature for the January–September period (year-to-date) was 0.68°C (1.22°F) above the 20th century average of 14.1°C (57.5°F), tying with 1998 as the warmest such period on record.

 

Details posted at: NOAA National Climatic Data Center, State of the Climate: Global Analysis for September 2014, published online October 2014, retrieved on October 20, 2014 from http://www.ncdc.noaa.gov/sotc/global/2014/9

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August Global Temperature Breaks Record

Posted by feww on September 20, 2014

EXTREME WEATHER & CLIMATIC EVENTS
RISING TEMPERATURES
MAIN SCENARIOS 797,  777, 555, 444, 300, 123, 111, 101, 066, 033, 011, 04, 03, 02
.

Warmest Summer on Record: Global Temperatures Continue Rising

The combined average global temperature for land and ocean surfaces during August 2014 was a record high for the month, at 0.75°C (1.35°F) above the 20th century average of 15.6°C (60.1°F), beating the previous record set in 1998, said NOAA in its monthly State of the Climate Report.

Other Global Highlights [Source: NOAA]

  • The August global sea surface temperature was 0.65°C (1.17°F) above the 20th century average of 16.4°C (61.4°F). This record high departure from average not only beats the previous August record set in 2005 by 0.08°C (0.14°F), but beats the previous all-time record set just two months ago in June 2014 by 0.03°C (0.05°F).
  • The global land surface temperature for the month was 0.99°C (1.78°F) above the 20th century average of 13.8°C (56.9°F), the second highest on record for August, behind 1998.

Warmest Summer on Record

  • The combined average global land and ocean surface temperature for the June–August period was also record high for this period [record keeping began in 1880,] at 0.71°C (1.28°F) above the 20th century average of 16.4°C (61.5°F), shattering the previous record set in 1998.
  • The first eight months of 2014 (January–August) were the third warmest such period on record across the world’s land and ocean surfaces, with an average temperature that was 0.68°C (1.22°F) above the 20th century average of 57.3°F (14.0°C). If 2014 maintains this temperature departure from average for the remainder of the year, it will be the warmest year on record.
  • The average global sea surface temperature tied with 2010 as the second highest for January–August in the 135-year period of record, behind 1998.

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Hottest June on Record

Posted by feww on July 22, 2014

EXTREME WEATHER & CLIMATIC EVENTS
RISING TEMPERATURES
MAIN SCENARIOS 797,  777, 555, 444, 300, 123, 111, 101, 066, 033, 011, 04, 03, 02
.

June 2014 average land and ocean temperature highest for the month since records began in 1880

The combined global average temperature across land and ocean for June 2014 was the highest for the month, at 0.72°C (1.30°F) above the 20th century average. The previous record was set in June 1998, by 0.03°C (0.05°F), according to the State of Climate Report released by NOAA.

Nine of the ten warmest Junes on record have occurred during the 21st century, including five consecutively since 2010.

“June 2014 also marks the second consecutive month with record high global temperatures. With the exception of February (21st warmest), every month to date in 2014 has ranked among the four warmest for its respective month.”

June 2014 also marked the 38th consecutive June and 352nd consecutive month with a global temperature above the 20th century average.

Selected highlights mirrored from NOAA’s June 2014 State of Climate Report:

  • The combined average temperature over global land and ocean surfaces for June 2014 was the highest on record for the month, at 0.72°C (1.30°F) above the 20th century average of 15.5°C (59.9°F).
  • The global land surface temperature was 0.95°C (1.71°F) above the 20th century average of 13.3°C (55.9°F), the seventh highest for June on record.
  • For the ocean, the June global sea surface temperature was 0.64°C (1.15°F) above the 20th century average of 16.4°C (61.5°F), the highest for June on record and the highest departure from average for any month.
  • The combined global land and ocean average surface temperature for the January–June period (year-to-date) was 0.67°C (1.21°F) above the 20th century average of 13.5°C (56.3°F), tying with 2002 as the third warmest such period on record.

The Ocean

The June global ocean surface temperature was record high, at 0.64°C (1.15°F) above the 20th century average of 16.4°C (61.5°F). “This marks the first time that the monthly global ocean temperature anomaly was higher than 0.60°C (1.08°F) and surpasses the previous all-time record for any month by 0.05°C (0.09°F); the previous record of +0.59°C (1.06°F) was first set in June 1998 and tied in October 2003, July 2009, and just last month in May 2014.”

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May Global Temperature Reaches All-time High

Posted by feww on June 24, 2014

EXTREME WEATHER & CLIMATIC EVENTS
RISING GLOBAL TEMPERATURES
CROP DISASTERS
SCENARIOS 900, 777, 555, 444, 111, 03
.

Global Temperature Analysis – May 2014

The combined average temperature over global land and ocean surfaces for May 2014 reached record highest for this month, at 0.74°C (1.33°F) above the 20th century average of 14.8°C (58.6°F), according to NOAA.

“This surpassed the previous record high anomaly of 0.72 degrees Celsius set in 2010,” said NOAA in its monthly state of the climate report.

“Four of the five warmest Mays on record have occurred in the past five years: 2010 (second warmest), 2012 (third warmest), 2013 (fifth warmest), and 2014 (warmest).”

Fourth warmest May on record was in 1998.

Other Global Highlights

  • The global land surface temperature was 1.13°C (2.03°F) above the 20th century average of 11.1°C (52.0°F), the fourth highest for May on record. For the ocean, the May global sea surface temperature was 0.59°C (1.06°F) above the 20th century average of 16.3°C (61.3°F), making it the record highest for May and tying with June 1998, October 2003, and July 2009 as the highest departure from average for any month on record.
  • The combined global land and ocean average surface temperature for the March–May period was 0.74°C (1.33°F) above the 20th century average of 13.7°C (56.7°F), making it the second warmest such period on record, behind 2010.
  • The March–May worldwide land surface temperature was 1.26°C (2.27°F) above the 20th century average, the third warmest such period on record. The global ocean surface temperature for the same period was 0.54°C (0.97°F) above the 20th century average, also the third warmest March–May on record.
  • The combined global land and ocean average surface temperature for the January–May period (year-to-date) was 0.66°C (1.19°F) above the 20th century average of 13.1°C (55.5°F), the fifth warmest such period on record.
  • While most parts of the globe experienced warmer-than-average temperatures in May, record warmth occurred across eastern Kazakhstan, parts of Indonesia, and central and northwestern Australia.
  • May 2014 marked the 39th consecutive May and 351st consecutive month with a global temperature above the 20th century average.

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Global temperature tied with 2005 as record highest for September

Posted by feww on October 16, 2012

DISASTER CALENDAR SYMBOLIC COUNTDOWN: 1,243 Days* Left 

[October 16, 2012] Mass die-offs resulting from human impact and the planetary response to the anthropogenic assault could occur by early 2016. 

  • SYMBOLIC COUNTDOWN: 1,243 Days Left to the ‘Worst Day’ in Human History

*Countdown has been revised

.

Global Disasters/ Significant Events

Global temperature for September 2012 tied with 2005 as the warmest on  record: NOAA

“The globally-averaged temperature for September 2012 tied with 2005 as the warmest September since record keeping began in 1880.” NOAA reported.

  • Combined average temperature over land and ocean surfaces for September was 60.21°F (15.67°C) or 1.21°F (0.67°C) above the 20th century average.
  • September 2012 was also the 36th consecutive September and 331st consecutive month with a global temperature above the 20th century average.
  • 2012 January-September period was the warmest first nine months of any year on record for the contiguous United States, with the national temperature of 59.8°F, which  was 3.8°F above the 20th century average.
  • “The October 2011-September 2012 period was the warmest such 12-month period on record for the contiguous U.S., with an average temperature of 56.2°F, 3.2°F above average. This 12-month temperature average tied the June 2011-May 2012 period as the 3rd warmest of any 12-month period. The six warmest 12-month periods have all ended during 2012.” NOAA said.

Global Disasters: Links, Forecasts and Background

GLOBAL WARNING

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August 2012 Fourth Warmest on Record

Posted by feww on September 18, 2012

Global Land Temperature:  Second Warmest August on Record

Average temperature over global land and ocean surfaces was the 4th highest on record for August, at 61.22°F (16.22°C) or 1.12°F (0.62°C) above the 20th century average, NOAA reported.

  • August 2012 was the 36th consecutive August and 330th consecutive month with a global temperature above the 20th century average.
  • Global land temperature was 58.52°F, which tied with 2001 and 2011 as the second warmest August on record, behind 1998.
  • Temperature for global land and ocean surfaces for June–August tied with 2005 as the third highest on record for this period at 61.25°F (16.24°C), or 1.15°F (0.64°C), above the 20th century average.

Related Links

GLOBAL WARNING

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More Weather Records Shattered as Forecast

Posted by feww on February 19, 2011

Expect Frighteningly Hot Summer in 2011

In Global Climate Extremes INTENSIFYING

FIRE-EARTH forecast:

2011 Could Shatter 2010 Records

The wettest, coldest, driest, hottest, severest… could get even worse this year

Extremes of temperature, precipitation, drought and other climatic and weather events would continue to intensify throughout 2011, FIRE-EARTH forecasts.

It has, and it’s continuing to shatter more records …

United States

  • Dulles International Airport set a new record of 75 degrees, 2 degrees higher than previous record of 1981, said a report.
  • And “77 degrees at Reagan National Airport. That made Friday the warmest Feb. 18 recorded in Washington.”
  • Boston reported a high of 60 degrees.
  • A new record high temperature of 80ºF was set at Oklahoma’s Will Rogers World Airport on Thursday, The National Weather Service said.
  • Just a week ago, the mercury plunged to minus 31 degrees  a in Nowata breaking previous Oklahoma record of minus 27 degrees.
  • In North Carolina a record new high was set as mercury rose to 78 degrees at Raleigh-Durham International Airport,  23 degrees higher than normal for the date. The previous record stood at 75 degrees and remained unbroken since 1948, a report said.

Finland

  • “The record low temperature for this winter inched down a degree or so last night. Between Thursday and Friday a new record low for 2010-2011 of -41.3°C was measured in Salla’s village of Naruska in southeastern Lapland, the Finnish Meteorological Institute reports.”

Russia

  • Moscow region’s temperature fell to as low as minus 33.4 degrees Celsius in Klin, a 60-year record low for the region, a report said.

2011-2012: Record Shattering Period

Since January, many new rain and snowfall records have also been set, the latest of which was in Down Under.

Darwin, Australia recorded a total of 339.6mm of rain during the 24 hours ending at 9am Wednesday—an all time 24 hour rainfall record for the city.

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CO2 Controls Earth’s Temperature

Posted by feww on October 15, 2010

Atmospheric CO2  acts as Earth’s thermostat: Study

A new modeling study shows that the planet’s temperature is controlled by the atmospheric CO2, NASA says.


Various atmospheric components differ in their contributions to the greenhouse effect, some through feedbacks and some through forcings. Without carbon dioxide and other non-condensing greenhouse gases, water vapor and clouds would be unable to provide the feedback mechanisms that amplify the greenhouse effect. Source: NASA GISS

Water vapor and clouds are the major contributors to Earth’s greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet’s temperature ultimately depends on the atmospheric level of carbon dioxide.

The study, conducted by Andrew Lacis and colleagues at NASA’s Goddard Institute for Space Studies (GISS) in New York, examined the nature of Earth’s greenhouse effect and clarified the role that greenhouse gases and clouds play in absorbing outgoing infrared radiation. Notably, the team identified non-condensing greenhouse gases — such as carbon dioxide, methane, nitrous oxide, ozone, and chlorofluorocarbons — as providing the core support for the terrestrial greenhouse effect.

Without non-condensing greenhouse gases, water vapor and clouds would be unable to provide the feedback mechanisms that amplify the greenhouse effect. The study’s results will be published Friday, Oct. 15 in Science.

A companion study led by GISS co-author Gavin Schmidt that has been accepted for publication in the Journal of Geophysical Research shows that carbon dioxide accounts for about 20 percent of the greenhouse effect, water vapor and clouds together account for 75 percent, and minor gases and aerosols make up the remaining five percent. However, it is the 25 percent non-condensing greenhouse gas component, which includes carbon dioxide, that is the key factor in sustaining Earth’s greenhouse effect. By this accounting, carbon dioxide is responsible for 80 percent of the radiative forcing that sustains the Earth’s greenhouse effect.

The climate forcing experiment described in Science was simple in design and concept — all of the non-condensing greenhouse gases and aerosols were zeroed out, and the global climate model was run forward in time to see what would happen to the greenhouse effect. Without the sustaining support by the non-condensing greenhouse gases, Earth’s greenhouse effect collapsed as water vapor quickly precipitated from the atmosphere, plunging the model Earth into an icebound state — a clear demonstration that water vapor, although contributing 50 percent of the total greenhouse warming, acts as a feedback process, and as such, cannot by itself uphold the Earth’s greenhouse effect.

“Our climate modeling simulation should be viewed as an experiment in atmospheric physics, illustrating a cause and effect problem which allowed us to gain a better understanding of the working mechanics of Earth’s greenhouse effect, and enabled us to demonstrate the direct relationship that exists between rising atmospheric carbon dioxide and rising global temperature,” Lacis said.

The study ties in to the geologic record in which carbon dioxide levels have oscillated between approximately 180 parts per million during ice ages, and about 280 parts per million during warmer interglacial periods. To provide perspective to the nearly 1 C (1.8 F) increase in global temperature over the past century, it is estimated that the global mean temperature difference between the extremes of the ice age and interglacial periods is only about 5 C (9 F).

“When carbon dioxide increases, more water vapor returns to the atmosphere. This is what helped to melt the glaciers that once covered New York City,” said co-author David Rind, of NASA’s Goddard Institute for Space Studies. “Today we are in uncharted territory as carbon dioxide approaches 390 parts per million in what has been referred to as the ‘superinterglacial.'”

“The bottom line is that atmospheric carbon dioxide acts as a thermostat in regulating the temperature of Earth,” Lacis said. “The Intergovernmental Panel on Climate Change has fully documented the fact that industrial activity is responsible for the rapidly increasing levels of atmospheric carbon dioxide and other greenhouse gases. It is not surprising then that global warming can be linked directly to the observed increase in atmospheric carbon dioxide and to human industrial activity in general.”

More Reading

by Kathryn Hansen, NASA’s Earth Science News

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