Glacial lakes are growing in number and size

Today's Video of the Day from NASA Goddard describes the largest-ever study of glacial lakes based on 30 years of satellite data.  The researchers found that, as a result of global warming, the volume of glacial lakes has increased by about 50 percent worldwide over the last three decades. The lakes that form as a result of glacier retreat lack stability and can burst through their sediment banks or ice dams at any time, which often causes major floods downstream.  These "outburst floods" have …