Larson

Positive Charcoal=Negative Carbon?
Why adding charcoal to the Earth's soils will also address climate change.
Ron Larson. Chair, American Solar Energy Society, Solar Today, November-December 2006

"We clearly are making progress on global warming education. Scientific American magazine’s special September-issue theme, “Energy’s Future Beyond Carbon,” focused on ways to achieve a reduced-carbon future, which
experts say is far behind schedule. But like most everything I read on the subject, the articles offered little hope that we can take any of the existing carbon dioxide (CO2), the major contributor to climate change, out of the atmosphere. However, as evidenced by an article in the Aug. 10 issue of Nature (http://www.nature.com/nature/journal/v442/n7103/full/442624a.html), one “negative carbon” possibility seems to be getting another look from scientists: the positive impacts of putting charcoal back into the ground.