Mountain pine beetles appear to be doing more than killing large swaths of forests in the Rocky Mountains. Scientists suspect they are also altering local weather patterns and air quality.

This year is proving unusually active for Atlantic storms. The hurricane season is only at its midpoint, but already there have been 10 named storms—which is the average number for an entire year.

Dramatic year-to-year temperature swings and a century-long warming trend across West Antarctica are linked to conditions in the tropical Pacific Ocean, according to a new analysis of ice cores conducted by scientists at NCAR and the University of Washington (UW).

People living near vulnerable creeks and rivers along the Front Range may soon get advance notice of potentially deadly flash floods, thanks to a new forecasting system being tested this summer by NCAR.

In an attempt to create a favorable environment for this summer's Olympic Games in Beijing, Chinese officials hope to influence local weather conditions and air quality.