Smartly designed, salvaged wood doghouse sports a green roof

San Francisco tops Green City Index, followed by Vancouver and NYC

Sustainability informs Brazilian designer's creations.

Military steps up effort to go green.

Environment minister calls for checks on development.

Clever Little Bag, PUMA's new eco packaging, hits the market.

Roadkill as sustainable eating.

Wallpapered dumpsters force a reconsideration of trash.

Canadian city unveils waste collection vehicle that feeds itself.

Ralf Schmerberg's refrigerator igloo makes a statement on energy use and climate change.