For three years in a row, Juneau has had unprecedented flooding in August from a melting glacier. This year, officials built a levee to protect the city. It seems to have helped, but it's temporary.

Melting glaciers in Greenland are kicking up nutrients for ocean life. The impact on the ecosystem is complex.

Glaciers holding massive amounts of water are melting at unprecedented rates, reshaping ocean systems and influencing ...

A melting glacier pushed the Mendenhall River to a record-high crest of more than 16 feet, prompting a major flood threat to ...

Some Juneau residents have been urged to evacuate as Alaska's Mendenhall Glacier releases floodwater. NBC News' Chase Cain ...

Glaciers holding massive amounts of water are melting at unprecedented rates, reshaping ocean systems and influencing ...

Suicide Basin, an ice-dammed lake on an arm of Mendenhall Glacier, has filled up with meltwater and sent destructive surges ...

Glacial lake outburst flooding is a flood that's produced by the quick, unexpected release of water from a glacial lake.

A "glacial outburst" threatens major flooding in Alaska's capital city as a glacial lake flood phenomenon inundates the Mendenhall River.

These floods, which began more than a decade ago, have become increasingly destructive in recent years and now pose a ...

A 'glacial outburst' – a burst of water from a glacial lake – threatened to engulf residents of Juneau, Alaska.