Sugarcane cools climate

Brazilians are world leaders in using biofuels. About a quarter of their automobile fuel consumption comes from sugarcane, which significantly reduces carbon dioxide emissions. Now scientists have found that sugarcane has a double benefit. Expansion of the crop in areas previously occupied by other crops cools the local climate by reflecting sunlight back into space and by lowering the air temperature as the plants "exhale" cooler water.

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