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  Arctic sea ice surpassed all previous records for the lowest absolute minimum summer extent in September 2007. The "stunning record low" of 4.13 million square... More »

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Climate Change: Pandora's Box? Last Updated on 2010-09-04 at 19:38 On the Nature Blog, 'The Great Beyond', on January 27, 2009, Daniel Cressey wrote No way back from climate change Much like the sins in Pandora’s Box, once carbon dioxide is... More »

Renewable energy Last Updated on 2010-08-27 at 08:48 Renewable energy sources are those that are naturally available and replenished. Renewable energy sources include solar, wind, hydro (water), geothermal, Tidal power or ocean... More »

Clean Air Act, United States Last Updated on 2010-01-17 at 15:38 Congress first enacted the Clean Air Act (CAA) in 1963 with the purpose of reducing air pollution from stationary sources such as power plants and steel mills. The CAA sets... More »

Focus: Impacts of Humans and Their Economy on the... Last Updated on 2009-02-27 at 21:47 The National Science Foundation (NSF) has issued a Dear Colleague Letter to the scientific community ". . . encouraging increased research . . . on the links among environment,... More »

UNEP Africa Atlas of Environmental Changes Last Updated on 2009-02-04 at 10:43 The United Nations Environmental Programme has published an Atlas that tells the story of the changing environment in Africa using stunning visuals.     More »

Forest harvest and water yield Last Updated on 2008-12-01 at 07:12 The Hubbard Brook watershed in NH, USA. Photo: http://www.hubbardbrook.org Forest harvesting, or other reductions to vegetative cover, generally increases the average... More »

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