Visualizing Drought

The impacts of drought depend on time-scale. On short time-scales, drought means dry soil. On long time-scales, it means dry rivers and empty reservoirs. A region may simultaneously experience dry conditions on one time-scale and…

Arctic Sea Ice Extent Data

Sea ice volumes in polar regions are a key indicator of global change. In the Arctic, sea ice extent in summer has fallen dramatically in recent years, particularly in 2007 and 2008. The media do…