World's largest tent opens in Kazakhstan.

As the federal climate bill dies, a regional alliance steps up for emissions controls.

The New York Times reports.

Country moves to make natural-gas fired plants the new clean-power standard.

U.S. Supreme Court decision clears path for genetically modified alfalfa.

The switch to efficient lighting will have a significant impact on emissions – and climate change.

But do the functional benefits meet the aesthetic aims?

Office gardens encourage a healthy workforce.

Age-old practice breathes new life into abandoned property.

Clever urban hack created by young L.A. duo encourages people to replant their neighborhoods.