A report by the American Lung Association finds that air pollution has fallen to its lowest levels since the group began collecting data in 2000. The ALA credits the Clean Air Act.
In the developing world, where land-intensive wind turbines are being rapidly constructed, wind power has often turned clean energy into dirty business.
For the first time, a US appellate court has ruled that the federal government must continue to protect an animal – in this case, Yellowstone grizzly bears – in part because of consequences of global warming.
The Arctic Report Card study suggests that changes at the top of the world have led to unusual weather patterns, a greener Greenland, and lots of plankton. At least the whales are pleased.
UN-sponsored climate talks opened Monday in South Africa amid grim news on global warming and deeply divisive questions over how, or whether, to expand or extend the Kyoto Protocol.
A new report from the Intergovernmental Panel on Climate Change projects that such events are likely to occur if greenhouse-gas emissions continue unabated.