Wednesday, December 5, 2007

Decarbonization of global economy should be goal

Complete Decarbonization of Global Economy Should be the Goal. By George Monbiot, Mobiot.com, December 4, 2007. "There is now a broad scientific consensus that we need to prevent temperatures from rising by more than 2°C above their pre-industrial level. Beyond that point, the Greenland ice sheet could go into irreversible meltdown, some ecosystems collapse, billions suffer from water stress, droughts could start to threaten global food supplies... A paper in Geophysical Research Letters finds that even with a 90% global cut by 2050, the 2° threshold 'is eventually broken'. To stabilise temperatures at 1.5° above the pre-industrial level requires a global cut of 100%. The diplomats who started talks in Bali yesterday should be discussing the complete decarbonization of the global economy. It is not impossible. In a previous article I showed how by switching the whole economy over to the use of electricity and by deploying the latest thinking on regional supergrids, grid balancing and energy storage, you could run almost the entire energy system on renewable power. The major exception is flying (don't expect to see battery-powered jetliners) which suggests that we should be closing rather than opening runways. This could account for around 90% of the necessary cut. Total decarbonisation demands that we go further. Preventing 2° of warming means stripping carbon dioxide from the air. The necessary technology already exists: the challenge is making it efficient and cheap."

Robert McAfee
Climate Change Messenger
2610 W Hackett Rd, Hackett, AR 72937
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Answering the Call -- theclimateproject.org

A broadranging climate Web site — The Climate Project

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