Hands wave in the air as students join a spirited discussion about start-up financing and laughter ripples through the class when someone IDs the three "Fs" of independent funding: Friends, family, fools.
A 17-year-old Argentine has undergone surgery to become a female only months after winning a court battle in the first case of its kind involving a minor in this country, a representative for the teen said Tuesday.
Two days after naming its mascot "PorkChop," the Philadelphia Phillies' new Triple-A affiliate abruptly dropped the moniker after receiving complaints from Hispanics that it was offensive.

The vivid sunsets painted by J.M.W. Turner are revered for their use of color and light and for their influence on the Impressionists. But could they also help global warming experts track climate change?

Helping the world's poor adapt to more floods, droughts and other changes from a warming planet will cost the richest nations at least $86 billion a year by 2015, an expert panel warned Tuesday.

The Bowl Championship Series will expand the pool of teams eligible for at-large bids if it's faced with a shortage of qualified contenders when the season is over.

Global warming is "unequivocal" and carbon dioxide already in the atmosphere commits the world to an eventual rise in sea levels of up to 4.6 feet, the world's top climate experts warned Saturday in their most authoritative report to date.

On a day when a U.N. panel warned of growing peril from climate change, John Edwards accused the oil and gas industry Saturday of deploying hundreds of lobbyists to Washington to resist efforts to free the nation from its dependence on fossil fuels.

The Earth is hurtling toward a warmer climate at a quickening pace, a Nobel-winning U.N. scientific panel said in a landmark report released Saturday, warning of inevitable human suffering and the threat of extinction for some species.

Delegates from more than 140 countries agreed Friday on a scientific "instant guide" for policy makers, stating more forcefully than ever that climate change has begun and threatens to irreversibly alter the planet.

The U.N.'s top climate official warned policymakers and scientists trying to hammer out a landmark report on climate change that ignoring the urgency of global warming would be "criminally irresponsible."
The United States is moving toward the regulation of carbon emissions, a U.S. energy official said Thursday, despite the Bush administration's adherence to a voluntary approach to controlling the primary gas blamed for climate change.
Parts of Australia could be 9 degrees Fahrenheit hotter and 80 percent drier by 2070 if global greenhouse gas emissions are not radically reduced, government data said Tuesday.

Governments of almost 200 countries have agreed to speed the elimination of a major greenhouse gas that depletes ozone, U.N. and Canadian officials said Saturday, describing a deal they said was a significant step toward fighting global warming.

The science is clear and the time short, but the political will is lacking to confront global warming, the U.N. secretary-general said Tuesday.
As the world warms, the United States will face more severe thunderstorms with deadly lightning, damaging hail and the potential for tornadoes, a trailblazing study by NASA scientists suggests.

Presidential hopeful John Edwards said Thursday the Washington establishment is corrupt and suggested — without mentioning her by name — that rival Hillary Rodham Clinton has been part of that corroded system.
School teachers from across Alaska are getting lessons this month at the University of Alaska Fairbanks so they can more effectively teach their students back home about climate change.

Developed countries are hypocritical for criticizing China's greenhouse gas emissions while buying products from its booming manufacturing industry, Beijing said Thursday.
The head of NASA told scientists and engineers that he regrets airing his personal views about global warming during a recent radio interview, according to a video of the meeting obtained by The Associated Press.
The head of NASA said he was not sure global warming was a problem and added that it would be "arrogant" to assume the world's climate should not change in the future. Scientists called the remarks ignorant.

The Smithsonian Institution toned down an exhibit on climate change in the Arctic for fear of angering Congress and the Bush administration, says a former administrator at the museum.


