World of change: Columbia Glacier, Alaska

The Columbia Glacier descends from an ice fieldĀ 10,000 feet (3,050 meters) above sea level, down the flanks of the Chugach Mountains, and into a narrow inlet that leads into Prince William Sound in southeastern Alaska. It ...

Deal reached to clean land around 3 US plutonium reactors

A portion of the vast Washington state site where the U.S. government created much of the plutonium for the nation's nuclear arsenal will be scrubbed free of radiation and other pollution under a final plan reached by the ...

Talks to revise the Columbia River Treaty to begin Tuesday

Talks are scheduled to begin this week in Washington, D.C., to modernize the document that coordinates flood control and hydropower generation in the United States and Canada along the 1,200-mile (1,930-kilometer) Columbia ...

Support rises for controversial Canada pipeline

Support in Canada for a pipeline expansion to move oil to the Pacific coast for shipping to new markets overseas is rising, polling showed Wednesday as protests against it followed the prime minister to Britain.

Coming down in flames: Fiery endings for spacecraft

China's defunct Tiangong-1 space lab is expected to make a fiery re-entry into the earth's atmosphere in the coming days and disintegrate in what Chinese authorities promise will be a "splendid" show.

Canadian provinces feud over Pacific pipeline project

A pipeline project aimed at boosting Canada's overseas oil sales and reducing reliance on US buyers has pitted two provincial governments against each other, sticking the prime minister in the middle.

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