Glacier National Park loses 2 more glaciers

April 08, 2010|Associated Press

BILLINGS, Mont. — Glacier National Park has lost two more of its namesake moving ice fields to climate change, which is shrinking the rivers of ice until they grind to a halt, a government researcher said yesterday.

Warmer temperatures have reduced the number of named glaciers in the northwestern Montana park to 25, said Dan Fagre, an ecologist with the US Geological Survey. He warned the rest of the glaciers may be gone by the end of the decade.

“When we’re measuring glacier margins, by the time we go home the glacier is already smaller than what we’ve measured,’’ Fagre said.

From the Himalayas to Alaska, glacier melting has accelerated in recent decades as global temperatures increased. The melt-off shows the climate is changing but does not show exactly what is causing temperatures to go up, Fagre said.

The park’s glaciers have been slowly melting since about 1850, when the centuries-long Little Ice Age ended. They once numbered as many as 150, and 37 of those glaciers eventually were named.

A glacier needs to be 25 acres to qualify for the title.

If it shrinks any smaller, it does not always stop moving right away. A smaller mass of ice on a steep slope would still continue to grind its way through the mountains but eventually disappears completely.

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