Economist Jeremy Rifkin makes the case for a decentralized clean energy economy

Ominous B&W images of planet Earth

Gallery discovers early work under layers of paint

We may be broke, but we have our wilderness -- for now

Fruit desserts that let the season's bounty shine

Icelandic carbon storage experiment set to begin

Chicago's mega-airport joins the beekeeping movement

New doc, American Meat, aims to ignite conversation about meat production

Planners need to acknowledge the history, geography and diversity of cities, says renowned urban thinker

Can the Ultra-Ex project save Cleveland?