Wallpapered dumpsters force a reconsideration of trash.

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

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

Scientists hope to turn coal plant CO2 emissions into clean air.

Korean artist-designer wows with creative use of ordinary materials.

60-foot sailboat built from plastic bottles docks in Sydney.

Japanese "solar sail" propelled by the sun.

BP installs new cap that it hopes will capture the crude leaking into the Gulf.