An Indiana University professor is witnessing the effects of Greenland's melting ice cap during regular visits to the Arctic.
The Herald-Times reports environmental science professor Jeffrey White has been traveling to Greenland during the winter and summer for several years to collect data. He says he's had to hike an extra 100 yards each year to reach the edge of the ice sheet he's studying.
White says Greenland's ice cap shrank "significantly" between 2003 and 2008 and that the melting has accelerated since then. Scientists expect massive melting to occur more frequently.
He says the Arctic melting affects how much solar energy the Earth absorbs. Less snow and ice mean oceans and soil get warmer.
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