LONDON (Reuters) - Greater use of woody fuels is vital to slash global carbon emissions but fast advances in crop yields will be needed to avoid driving up food prices, members of Germany's Potsdam Institute for Climate Impact Research found.
Biofuels are already widely used in the United States, Europe and Brazil to substitute for gasoline and diesel, but are made from crops including sugar, oilseeds and corn which has driven concerns they are stoking food prices.