• Over the past few decades, Arctic sea ice has been retreating, and although research shows a downward trend in snow on land in the Arctic, long-term measurements of snow depth on sea ice have been less clear. But now, new research using data from NASA’s Operation IceBridge shows that snow depth on Arctic sea ice has been decreasing over the past several decades, a trend largely owing to later sea ice freeze-up dates in the Arctic.  Arctic sea ice melts during the summer and begins refreezing in the fall. A

    Scientists have determined that snow in the Arctic is less than half as much as it was in the 1950's.

    LAST UPDATE : Aug 14, 2014, 1:27 PM EDT