"How do you save the planet? Chop down a tree and put it in a microwave. That's not a joke. It's the proposition of at least two dozen companies developing "biochar" technology that they say will suck carbon dioxide out of the atmosphere and help curb global warming."
"After appropriate management changes land can remove CO2 from the air and sequester it in soil or above-ground biomass. Carbon can also be sequestered by forming biomass into human artefacts and preserving it, preventing its carbon from being returned to the atmosphere."