Monday, 22 June 2009

Lovelock on biochar

Dr. Lovelock has endorsed biochar as a means of mitigating the effects of climate change resulting from excessive emissions of climate gases. The article behind the link also takes issue with the attack on biochar by George Monbiot from the Guardian. His outburst has derailed a productive debate that needs to continue. However, we must keep the debate in perspective.

Here is a quote from the article:

But if we could also extract CO2 we "might" have a shot. And the approach with the most potential, said Lovelock, is to turn organic material into "biochar" and bury it. Lovelock endorsed the approach during his May 26 meeting in Toronto. "I've written before about biochar, or agrichar, or charcoal, or just plain char – it's all pretty much the same. Take biomass, such as wood or municipal organic waste, and bake it at over 300 degrees C in the absence of oxygen. The process is called pyrolysis, and what it does is lock in about 60 per cent of the carbon in the charred biomass."


http://www.thestar.com/sciencetech/article/654444

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