Observatory: A Blow to the Oxygen Theory of Extinction
New research deals a blow to the hypothesis that a decrease in atmospheric oxygen contributed to a mass extinction 250 million years ago.



Observatory: Cinnamon Is Key Ingredient in Anti-Mold Wrapper
Researchers are using cinnamon?s microbe killing properties to develop an anti-mold wrapper.



Truce Is Reached in Battle Over Idaho Forest Land
Indiana and the Bush administration agreed to an unlikely truce allowing a mix of roads, logging and development as well as fully protected forest areas.



California Moves on Bill to Curb Sprawl and Emissions
A proposed law encourages housing close to job sites, rail lines and bus stops in order to shorten the time people spend in their cars.



Researchers Report Advances in Cell Conversion Technique
Biologists at Harvard have converted cells from a mouse?s pancreas into the insulin-producing cells that are destroyed in diabetes.



Purdue, Citing Research Misconduct, Punishes Scientist
An appeals committee at Purdue University has upheld findings of misconduct by Rusi P. Taleyarkhan.



As Arctic Sea Ice Melts, Experts Expect New Low
The coverage of sea ice in the Arctic could break the record low from last September, scientists said.



Xcel to Disclose Global Warming Risks
The New York attorney general announced an agreement that would require Xcel Energy, a builder of coal-fired plants, to disclose to investors the financial risks of global warming.



Green Roofs Offer More Than Color for the Skyline
The use of vegetation and rock to absorb rainwater on roofs is part of a growing effort to reduce greenhouse gases, rainwater runoff and electricity demand in New York.



Indonesia Expands Wildlife Haven
The government announced it would expand a national park on the island of Sumatra, which hosts endangered elephants and tigers.