The Environmental Protection Agency (EPA) has rejected a petition by California and 12 other states to set stricter standards on greenhouse gas emissions from automobiles than those put in place by the federal government.

1 of 5Full Size VIDEO Glacier Break Play Video BUENOS AIRES (Reuters) - Part of Argentina's Perito Moreno glacier collapsed on Wednesday, the first time large chunks of ice have broken off during the southern hemisphere winter.

The Hillsborough County Extension Service says a year long investigation into the decline and death of cabbage palms in Hillsborough County confirms the presence of a new lethal disease. The Cabbage Palm is Florida's State Tree.

The year 2007 was one of the worst wildfire seasons in history. You can help! Plant trees through Wildfire ReLeaf and spread the word by sending a post card.

Average annual domestic water use per capita, Canada, in litres:122,000 Average annual domestic water use per capita, France , in litres: 54,800 Estimated percentage of Canadian domestic water used for toilet flushing: 30

The Cape Cod gated community of Oyster Harbours is ground zero in a very uncivil war in which some of the wealthiest and most famous people in the country have joined forces with the coal industry to block the ambitious Cape Wind clean-energy project.

Two of the reservoirs supplying the city of Los Angeles with potable water were shut down when an independent laboratory test revealed them to be contaminated with high levels of the carcinogen bromate.

<p>You may not spend much time contemplating the benefits bestowed on the planet by Papua New Guinea&#146;s vast tropical rain forest, you may be only vaguely aware of the island nation&#146;s existence. But it&#146;s down there in the Pacific Ocean</p>

<p>The typical public transportation rider consumes less than half as much gasoline as a person with no access to transit. As a result, those who ride public transportation save an estimated 1.4 billion gallons of fuel each year</p>

Scientists at the National Snow and Ice Data Center said the ice retreated to a record level last September. They said there is a 50 % chance the thin ice could completely melt away at the North Pole by this September.