Over at Celsias there's a fairly long article on biofuels
with the title "Biofuels - From the Frying Pan Into the Fire?" It looks at the huge expansion in biofuel production that's taking place around the world and some of the detrimental effects of this. There are enormous tracts of rain forest being destroyed in favor of producing palm oil and other crops to feed our seemingly insatiable thirst for fuel. The rain forest destruction also means the destruction of habitat for countless species, eliminating still more biodiversity. The article is definitely worth a read, and it points out that although we need more sustainable replacements for petroleum, there is really no replacement for conservation.
[Source: Celsias.com via Hugg.com