Images supplied by environmentalists and aerial photographers, meteorologists and satellite agencies.

Climate change

Earth from Space

Ecosystems

Geography

Geology

Green energy

Landscapes

Minerals and Gemstones

Natural disasters

Pollution

Recycling

Weather

Natural disasters

Chinese landscape

China is a great mixture of agriculture, world famous heritage and expanding cities. The country's economic growth has been estimated to hit 10 percent in 2010. Featured images are taken by an award winning Photographer George Steinmetz.

Solar fields

These impressive solar power plants direct the Sun's rays onto vacuum tubes containing transfer fluid, heating it to 390 degrees Celsius. The fluid passes through a heat exchanger, which is used to boil water for steam turbine generators.