Dot Earth asks why oil salvaged from the spill is going to BP instead of U.S. reserves.

But do the functional benefits meet the aesthetic aims?

Office gardens encourage a healthy workforce.

How to tackle climate change — and what it means for the economy.

A look at 350.org's planet-scale art project for the climate.

Artist Daniel Arsham explores the intersection of nature and architecture.

A mixtape honoring our favorite form of transport.

But wildlife conservation groups oppose the project, the New York Times reports.

Researchers in Missouri aim to grow algae for biofuel in abandoned mines.