Does the recent warm spell over the eastern half of North America reflect climate change induced by increased greenhouse gases? When Europe experienced an extreme heat wave in 2003, two scientists at the Potsdam Institute for Climate Impact Research began a study to see if that event

With one island nation, Kiribati, already planning an exit strategy, and climatologists and oceanographers marking the steady rise in ocean surface levels, the 21st century looks like it will witness the first definitive impact of global warming. The government of Kiribati recently re