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Two British scientists say that increased levels of carbon dioxide in the atmosphere could mean more unpredictable turbulence on trans-Atlantic flights.

The United States is the only country to back out of its promises to reduce greenhouse gas emissions. America has contributed more cumulative carbon dioxide to the atmosphere than any other nation.

Davenport, Iowa, faced historic flooding last year that damaged much of the city's downtown riverfront. Business owners are concerned about future floods and how climate change plays a part.

Deputy Secretary of Defense Kathleen Hicks says the effects of climate change are already being felt. Storms have damaged U.S. bases and rising seas could submerge U.S. installations in the Pacific.

Vice President Al Gore explains how human ingenuity can solve our climate crisis.

In the American West, white glaciers and snow fields are outnumbered by long-overlooked “rock glaciers.” The rock covering these vast hunks of ice makes them far less affected by warming temperatures.

On the final day of the latest round of climate talks, rich and poor nations meeting in Lima, Peru, have yet to agree on the central issue of emissions targets.

The federal grants will preserve old growth forest and encourage sustainable timber practices.

The giant storm formed over abnormally warm water in the Pacific. And sea level rise makes storm surge even more dangerous to residents of Guam and the Mariana Islands.

Delegates at the U.N. climate talks in Bali agree to a path that is expected to deliver a new climate treaty within two years. The document includes measures for preserving tropical rainforests and helping poor countries adapt to a green economy.