Different types of aerosols have varying effects on climate change, according to US scientists, who were assisted in their research by a volcanic eruption. Until now, scientists have tended to expect

Punjab (Pakistan) is going to cut 70 per cent supplies to its perennial canals from Thursday because of the exhaustion of the reservoirs. Till Wednesday it was releasing 70 per cent supplies to the

Calling global warming "a real phenomenon" the Environmental Protection Agency chief, Christe Whitman has said the Bush Administration is considering limits on carbon dioxide emissions as part of a

Japan was widely criticized for failing to provide strong leadership in the run-up to a United Nations summit on climate change that it hosted in Kyoto in 1997. Three years on, the lack of leadership

Pesticides are killing frogs and other amphibian species in the US

At Brazil's main airports leaflets will be distributed warning passengers of the danger of contracting potentially fatal blood clots on long-haul flights. The threat of suffering deep-vein thrombosis