Economic recession blamed for decline.

Company officials are cautiously optimistic after three days of encouraging test results.

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

Former Formula One engineer unveils superlight eco car.

The story of a species on the brink of extinction.

A modern dairy tale.

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

Move follows plastic bag prohibitions by several Californian cities.

World's fastest hybrid picks up fares in Rome.