As Uses of Biochar Expand, Climate Benefits Still Uncertain

http://feedproxy.google.com/~r/YaleEnvironment360/~3/9zYhBOTNksQ/

Research shows that biochar made from plant fodder and even chicken manure can be used to scrub mercury from power plant emissions and clean up polluted soil. The big question is whether biochar can be produced on a sufficiently large scale to slow or reverse global warming.

BY MARK HERTSGAARD

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