Climate change will reduce water availability during dry seasons and increase it during wet seasons around the globe, new research suggests. It also finds there will be large regional variations in water-related impacts.

UCAR and the U.N. Foundation have assembled a network of experts who can discuss climate change in communities across the country.

It takes a sharp eye to find something positive in the wreckage of the worst swarm of U.S. tornadoes on record: the 1974 Jumbo Outbreak. Millions of Americans are safer in the air because of Fujita's subsequent analysis of microbursts and tools developed by NCAR and collaborators.

Three scientists at the National Center for Atmospheric Research who served as authors of the assessment will be available for interviews after the report is released.

In recent years, spring snow has vanished even more quickly than computer models and climate scientists had expected, posing a research challenge and a potentially serious risk for water supplies.