Fire Earth

Earth is fighting to stay alive. Mass dieoffs, triggered by anthropogenic assault and fallout of planetary defense systems offsetting the impact, could begin anytime!

Posts Tagged ‘JAMES HANSEN’

Australian Coal and the Planet

Posted by feww on January 10, 2009

Australia is in the grip of a heatwave

Australia is about to experience some of the hottest temperatures anywhere on the planet!

Quote of the Day:

“Switzerland finances construction of coal plants, Sweden builds them, and Australia exports coal and sets atmospheric carbon dioxide goals so large as to guarantee destruction of much of the life on the planet.” ~ James Hansen, NASA Climatologist.

The above quote is from a letter to Michelle and Barack Obama written by Hanson on December 29, 2008.

Now the $64 trillion question

Why isn’t Hansen advocating a smart option like a low-energy path for the economy?

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Posted in australia, coal plants, heatwave, Sweden, Switzerland | Tagged: , , , , | Leave a Comment »

Hundreds of millions worldwide face disaster

Posted by feww on November 28, 2008

We import food from New Zealand because there’s no tax on aviation fuel, even though it makes no sense from a planetary standpoint. —Physicist James E. Hansen

“Time is running out to prevent catastrophic consequences from global warming, a leading climate scientist warned a packed audience Thursday at Stanford University.”

Physicist James E. Hansen said hundreds of millions of people will run out of fresh water sources and hundreds of millions of others will be forced to flee their homes by rising sea levels if greenhouse gas emissions stay the same.

[Note: It’s hoped that James Hansen would mention the rapid loss of topsoil in his future lectures.]

“To preserve creation, the planet on which civilization developed, we must draw down carbon dioxide to less than 350 parts per million,” Hansen  said. Read more

[Note: Moderators believe ‘safe’ emission levels are about 260-270 ppm.]

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Posted in Climate Change, Congress Dirty Dozen, Ethics of Food and the Environment, Global Warming, Stanford University | Tagged: , , , , | 4 Comments »

350 or 450ppm? Neither, Actually!

Posted by feww on June 18, 2008

Submitted by Dione, CASF Member

What would the future be like for my daughter?

Don’t know much about history
Don’t know much biology
Don’t know much about science books
Don’t know much about the French I took
But I do know that I love her

What a wonderful world this would be

Don’t know much about geography
Don’t know much trigonometry
Don’t know much about algebra
Don’t know what a slide rule is for
But I know that one and one is two

What a wonderful world this would be

[From a Herman’s Hermits song, Wonderful World, lyrics by Cooke/Alpert/Adler. Lyrics may be subject to copyright. See FEWW Fair Use Notice!]

Creating A Sustainable Future (CASF) received an emotional email from a young mother, “Kay,” who wishes to remain anonymous. Kay has a 6-year-old daughter and lives with her family in NW United States. Kay says she is not high on science, “in all probability the Herman’s Hermits famous song, ‘don’t know much about history, biology, science books, geography, trigonometry, algebra, and slide rule’ was written about me!”

She says her knowledge of climatology is even poorer than her French(!) “But I do know that I love my daughter and husband and ‘what a wonderful world this would be’ if we could rein in the greenhouse gases, and reverse the global warming.”

“I have read a number of articles about CO2 pollution in the atmosphere including a few written by the famed NASA scientist, Dr J. Hansen … but he is a government scientist …”

She wants to know the safe level of CO2 in the atmosphere and asks which of the 350, 450, or higher levels of CO2 pollution would be a “safe” level, and whether our reply could be put simply so that a “layperson” could understand the answer.

Hi, Kay – thanks for visiting our blog and email!

The CASF members believe even the lower atmospheric CO2 levels of 350ppm CO2 are unsafe! Here are the reasons why. Our findings put as simply as we could:

  1. Our climate models show that when the atmospheric CO2 levels leaped over the 330ppmv “threshold” in the mid 1970s it triggered a positive feedback loop, which is now impacting the climate. [The atmospheric CO2 inventory has risen by about 17 percent since then.]
  2. The “acid test,” if you’ll excuse the pun, of the accuracy of our models lies in the future, namely how much worse the environmental impacts will be in the 2008-2010 period. If the impacts of CO2 pollution worsened significantly, by a factor of 20% or more, by 2010 (we have a system for quantifying the adverse effects, see Index of Human Impact on Nature for an introduction), as we expect them to do so, then we know our models are accurate.
  3. The catch? By 2010 it would be too late to do anything to slow down the runaway positive feedback system [other than say a prayer for the dead!]
  4. While the preindustrial levels of 260-270ppm were [and they probably still would be ] “safe,” the longer term environmental impacts of CO2 at levels of about 290-300ppm, even if those levels were achievable [assume some miraculous means were introduced to wipe the slate clean,] in the current climatic state are uncertain!
  5. Based on the above, we recommend an immediate shift to zero-emissions, the benefits of which, although by no means immediate, would far outweigh the ultimate cost of playing Russian roulette with climate change.

We hope the above helps. Feel free to visit us anytime!

Best wishes
Dione, FEWW Moderators and rest of CASF Team

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dione

Posted in Climate Change, energy, environment, food, Global Warming, health, politics, Tourism, Travel | Tagged: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a Comment »

Tipping Point: Here and Now!

Posted by feww on April 30, 2008

Our thanks to Lisa G. for forwarding the link to the following (Source)

We are at the tipping point because the climate state includes large, ready positive feedbacks provided by the Arctic sea ice, the West Antarctic ice sheet, and much of Greenland’s ice. James Hansen

Tipping Point: PERSPECTIVE OF A CLIMATOLOGIST [PDF]
by JAMES HANSEN

An Excerpt from Hansen’s report:
Our home planet is dangerously near a tipping point at which human-made greenhouse gases reach a level where major climate changes can proceed mostly under their own momentum. Warming will shift climatic zones by intensifying the hydrologic cycle, affecting freshwater availability and human health.

[James Hansen is director of the National Aeronautics and Space Administration Goddard Institute for Space Studies and an Adjunct Professor of Earth and Environmental Sciences at Columbia University’s Earth Institute.]

The ice in the Arctic is much younger than normal, with vast regions now covered by first-year ice and much less area covered by multiyear ice. Left: February distribution of ice by its age during normal Arctic conditions (1985-2000 average). Right: February 2008 Arctic ice age distribution. Credit: NSIDC [Caption: NASA]

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Posted in Arctic, atmosphere, big oil, biofuels, biosphere, Climate Change, environment, food, greenhouse gases, Greenland’s ice, health, politics | Tagged: , , , , , , , , , | 1 Comment »