FT.com / Climate Change Challenge - Turning biomass into charcoal

Heres a cool approach - "carbon sink":

"The Black Phantom is a machine designed to turn biomass into charcoal, a very stable form of carbon that can be stored underground in a carbon sink"

FT.com / Climate Change Challenge - Turning biomass into charcoal: "Turning biomass into charcoal"

Vote for them on the right hand panel http://www.ft.com/indepth/climatechallenge