Mongabay: Snowfields once considered permanent are shrinking from the Rocky Mountains to the Himalayas.
Nearly 100 drainage basins across the northern hemisphere that currently supply water to 2 billion people in the American West, southern Europe, the Mideast and central Asia are at considerable risk over the next century.
Dwindling water supplies will not be a universal impact of declining snowpacks due to climate change, however.
Scientists have observed declining snowpack accumulation across the...