Leading scientists head to the western tropical Pacific, where storms influence climate worldwide.

Some Native American communities in Alaska and Louisiana are planning to relocate entire villages because of climate change. What are the obstacles they face?

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.