Increased Pacific winds are sending excess heat into the deep ocean and likely playing a role in the current hiatus in global warming.

How does the U.S. winter of 2013–14 rank against its predecessors? And was it a harbinger of more cold winters to come for parts of the country, or simply an outlier at a time of largely warming winters?

A nuclear exchange, even if limited to one region, would have severe atmospheric impacts.

Scientists link coal, oil, and biomass to a layer of sulfates high above Asia.

A recent conference marked the 25th anniversary of a crucial international meeting, organized with support from UCAR, that brought together atmospheric sciences from Taiwan and mainland China for the first time in decades.