Every 1 degree Fahrenheit of future warming will mean a significant reduction in the annual flow of streams that provide water to the city.

Shading the planet would produce drop in seasonal rains over many regions, new research finds.

The Intergovernmental Panel on Climate Change released the first major segment of its new assessment report in Stockholm on September 27. Audio is now available from a teleconference with NCAR scientists and university partners, who discussed the report and took questions from the media.

Parts of the central United States may become more prone to summertime drying than earlier thought, based on new simulations of climate change that involve both global and regional climate models.

A grand solar minimum would slow global warming but not stop it.