Critically endangered bowhead whales sing like birds

Researchers were stunned when they heard the audio from a recording device that spent a year in the icy waters off the east coast of Greenland. Have a listen..

For the U.S., summer 2012 was third-hottest in history

Meanwhile, the past 12 months (September 2011-August 2012) are the warmest 12 months ever recorded for the contiguous United States.

Deforestation decreases tropical rainfall, says study

New research on the way air carries moisture confirms that deforestation has a major effect on tropical rainfall.

Emily Bernhardt on mountaintop removal mining

Bernhardt spoke of the growing body of science related to the environmental and human health consequences of this mining practice.

Severe weather likely across U.S. Northeast today

Largest threat with this first U.S. autumn cold front will be wind gusts exceeding 60 miles per hour with possible tornadoes as storms push through the region.

View from space: Anak Krakatau volcano eruption

On September 4, 2012 a NASA satellite captured an image of lava flowing down Anak Krakatau. The fresh lava has extended the shoreline of the volcanic island.

A look back at Hurricane Isaac

As of now, it appears that Isaac caused the deaths of nearly 40 people and will result in at least $3 billion in damages.

Powerful summer storm in Arctic reduces sea ice

Sea ice in the Arctic in 2012 already appeared to be heading for a new record low. Then in early August, a long-lasting and powerful storm pushed through the Arctic.

Massive methane gas stores could sit beneath Antarctica

If Antarctica's ice sheets continue to thin as the climate warms, stores of the potent greenhouse gas could be released to the atmosphere, researchers say.

Earthquake in Philippines triggers tsunami warnings in Asia

This strong undersea earthquake triggered tsunami warnings along coastlines in much of Asia. No immediate reports of damage or injury.