martes, marzo 27, 2007

We need a five-year freeze on biofuels, before they wreck the planet.

By George Monbiot. Published in the Guardian 27th March 2007.

It used to be a matter of good intentions gone awry. Now it is plain fraud. The governments using biofuel to tackle global warming know that it causes more harm than good. But they plough on regardless.

In theory, fuels made from plants can reduce the amount of carbon dioxide emitted by cars and trucks. Plants absorb carbon as they grow – it is released again when the fuel is burnt. By encouraging oil companies to switch from fossil plants to living ones, governments on both sides of the Atlantic claim to be “decarbonising” our transport networks.