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

New nanotechnology research means your pants may one day power your iPod.

World's fastest hybrid picks up fares in Rome.

Largest solar-powered boat in the world to attempt historic voyage.

Atlantic coast under threat as tar balls wash up in Florida Keys.

Zero emissions? That depends on where you get the electricity to charge your car.

On Earth Day 's 40th anniversary, John Kerry warns that climate change is the environment's biggest hurdle yet.

Photographer continues his decade-long documentation of our dependence on oil.

Biannual Environmental Performance Index unveiled at the World Economic Forum.