Until recently, scientists were uncertain about how much and where in the world terrestrial carbon is being stored. Now scientists report that, between 1990 and 2007, the world's forests stored about 2.4 gigatons of carbon per year.
Because they can remove carbon dioxide from the flue gases of coal-burning facilities such as power plants, solid materials containing amines are being extensively studied as part of potential CO2 sequestration programs designed to reduce the impact of the greenhouse gas.
The Copenhagen climate change summit is being billed as the meeting that will determine humanity's future. What is all the fuss about? We sift through the science and policy, and tell you all you need to know.