Radical carbon dioxide removal projects could be a risky business
Wednesday, February 10, 2016 - 15:20
in Earth & Climate
Radical ways of removing CO2 from the atmosphere could prove to be a risky business -- according to an environmental scientist. Techniques put forward include growing crops to be burned in power stations, large-scale tree plantations, adding biochar to soil and using chemicals to extract CO2 from the atmosphere. But most, if not all, of these methods pose environmental risks.