There is no dearth of information on the changes in the environment. But unfortunately, the information is so much and so widely spread that tracking down details can be a terrible task. An organisation which has the latest data and news on ecology is the Environment Protection Agency (EPA) of the US Government.

Ironically, the country which pollutes the most is also the country which has some of the best tools to fight it.

EPA's site at www.epa.gov is exhaustive and exhausting. It has data on subjects as wide as acid rain to ground water pollution to indoor air. While the data is spread across several categories, it is a good site to visit if information is needed on specific subjects.