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Grass on the prairie is growing taller because there's now more carbon dioxide in the air. Paradoxically, though, this might be hurting wildlife, because the grass is less nutritious.

The new rules include automatically increasing the debt ceiling when a new budget is passed and setting up a committee on climate change.

"Hail more than a meter high, and then we wonder if climate change exists," said Enrique Alfaro Ramírez, the governor of Jalisco state. The Mexican army is helping to dig out the city.

Chief Vicki Christiansen says the danger is now year-round, thanks to hazardous conditions in forests, rampant home development and the changing climate.

Morrison's win defied analysts and pollsters, who had predicted his defeat for several months. "Tonight is about every single Australian who depends on their government to put them first," he said.

On Monday, President Obama will unveil tougher rules designed to cut carbon emissions from U.S. power plants. If the proposed plan clear legal hurdles, the nation's power grid would face big changes.

End poverty and hunger. Educate all kids. Fight climate change. Can the U.N. do all that while coping with the biggest refugee flow since WWII?

Minister of Environment, Water and Climate Oppah Muchinguri wants Palmer to face justice in Zimbabwe, wire services report. U.S. authorities are investigating whether any American laws were broken.

The Canadian company that had been pushing for approval to build the project is asking for a timeout in the review process. Here's what you should know.

From bass to lobster, hundreds of species that live along U.S. coastlines are projected to migrate north over the next 80 years, making them harder to catch and manage. It's already happening.