Yesterday we walked part of the way on the trail around Sutherland Pond in the Ooms Conservation Area in Old Chatham, NY, The path was treacherous because of the melting ice, so we didn’t make it the whole way. But we were mesmerized by the patterns of water flowing under the ice,
I assume this process is similar to the basal slippage seen for glaciers in temperate zones. Because of human-caused global warming, the ice melts underneath. Then the remaining ice slides on the water layer, leading to more rapid loss of the glacier.