The Fish and Wildlife Service has promised to evaluate the endangered status of 251 species in the next six years, if only so those pesky enviros will be quiet for a bit.

The country's largest rooftop solar-energy field will be installed in New Jersey, at a Toys "R" Us distribution center. No word on when the Barbie Dream House will go green, though.

Three senators released a bill that would cut subsidies to oil companies.

Don't pat yourself on the back for flying on a plane that uses biofuels: If the fuel comes from palm oil grown on land converted from rainforest, it's responsible for 10 times more carbon dioxide emissions than conventional fuel, according to MIT researchers.

Massachusetts became less optimistic about biomass once it became obvious that wood-burning plants were larger versions of the ovens used in Little House on the Prairie. We can probably learn a lot about sustainable living from the Ingallses, but their heating system was maybe not the greenest.

Men are mostly responsible for the growth in cycling. Hop on those bikes, ladies.