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!

Archive for the ‘Earth’ Category

That’s Mars’ Sister!

Posted by feww on April 7, 2008

WILD FACTS SERIES

[Updated] Index of Human Impact on Nature (HIoN) March 2008

As of End March 2008, the MSRB-CASF Index of Human Impact on Nature (HIoN), an index for calculating the full impact of human consumption and activities on the Earth’s life support systems, stood at a terminally high level of 177.43, a rise of about 3.5 percent over the previous year. In other words, the full human impact including the ecological footprint and the damage inflicted on the living environment by his activities in the 12-month period ending March 2008 was 77.43 percent higher than the load which the planet’s ecosystems in their current state can cope with.

Components of HIoN
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The HIoN Index integrates updated data and methodology used by the Millennium Ecosystem Assessment Synthesis Report for Global Status of Provisioning, Regulating, and Cultural Ecosystem services.

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Before and After [Top : Blue Marble composite images generated by NASA. Bottom (left), Mars from Hubble Space Telescope, (right) “Late spring on Mars” portrait taken with the HST Wide Field Planetary Camera-2 by NASA. Final composite image by FEWW.]

According to HIoN projections, our cities and population centers would become almost entirely unsustainable by as early as 2015.

 

Source: Index of Human Impact on Nature

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Posted in activities, consumption, Earth, energy, limits to growth, mars, Mars' sister, marsification | Tagged: , , , , | 2 Comments »

Earth, Land, Topsoil

Posted by edro on February 19, 2008

No Good for Farming!

“A [farmer] took up land [in Saskatchewan], dug a cellar and built a frame house on top of it; ploughed up the prairie and grew wheat and oats. After 20 years he decided the country was no good for farming, for eight feet of his soil had gone and he had to climb up into his house.” —Richard St, Barbe Baker, My Life, My Trees [Quoted by John Jeavons in How to Grow More Vegetables]

Land Use and Topsoil

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Once A Forest!
Photo credit: UNEP

Topsoil

Measuring an average of about 6.6 inches (16.76 centimeters) deep, topsoil is the upper layer of earth’s crust. Topsoil comprises of a mix of humus, mineral and composted materials giving rise to most of the soil’s biological activity and supplying nutrients to plants and therefore to animals. After air and water, topsoil is Earth’s most vital resource.

Topsoil: Wild Facts

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Table TS1. Topsoil: Wild Facts
Note: The average bulk density of topsoil is calculated at about 1.4 gcm-3

Original Entry >> Topsoil

Posted in agriculture, Earth, erosion, food, land, topsoil | 1 Comment »