New research suggests that the footprint of natural gas development is worse than coal.

Architect Matt Hofmann sizes down.

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

Psychedelic satellite pics of planet earth.

Winter resorts look to reduce footprints.

Lunchbreath takes a poke at corporate eco claims.

The Department of Energy unveils its new home energy ratings tool.

Annual study ranks consumer sustainability around the world.

Japanese "solar sail" propelled by the sun.

A Japanese Subway location experiments with growing its own lettuce.