nedelja, marec 27, 2011

Melting Glaciers are indicators!

Glaciers are masses of ice which move over land, carving out the landscape. Because they are sensitive to any changes in climate, they are indicators of global warming. Here we look at images of glaciers captured by satellites and astronauts on the space station.

The Bear Glacier in the Kenai Peninsula along the Gulf of Alaska empties into a lake. Pieces of the glacier that have broken off look like shards of white glass in the blue water. Down the middle of the glacier run stripes caused by the dirt and debris.

Small glaciers spill into a mostly dry valley in western Greenland in this picture from August 29, 2009. Multiple glaciers frequently flow into straight valleys that result from earlier glaciations that carved the bedrock.

Pictures: NASA VIR >

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