NEW YORK — With biofuels being touted as our best great hope to undo climate change, it would be easy to ask yourself, "What's not to like?"

Biofuels, proponents claim, will counter our global dependence on fossil fuels and help curb carbon emissions. But this "greening" of our energy sources is not all that green.

A growing group of human rights and environmental activists point to the dangers that biofuels pose to environmental sustainability and the livelihoods of communities around the world, and call for a major shift: a moratorium on biofuels.