26-hour flight confirms viability of emissions-free air travel.

The New York Times reports.

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

The story of a species on the brink of extinction.

A U.S. military base goes solar.

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

A modern dairy tale.

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

Report says exposure to BPA in canned food is "far more extensive" than plastic bottles.

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