The forests and grasslands of northern tropical Africa take in about as much carbon dioxide in the wet season as they release in the dry season, according to a new study based on observations from aircraft. The findings contradict earlier research that relied on satellite data and found that these ecosystems may be adding significantly more carbon to the atmosphere than they absorb over the course of a year.

Fast jet stream winds will accelerate by mid century as the planet warms.

NCAR has been awarded NSF funding to research links between new road transportation technologies and the changing climate.

An extraordinary new dataset of high-resolution weather simulations that span more than four decades over the continental United States is now available to the Earth system science community.

Simultaneous outbreaks of large wildfires will become more frequent in the West, putting major strains on efforts to fight the blazes.