Air pollution in the Northern Hemisphere in the mid-20th century cooled the upper half of the planet and pushed rain bands south, contributing to the prolonged and worsening drought in Africa’s Sahel region. Clean air legislation in the 1980s reversed the trend and the drought lessened.
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A study published this week in Nature Geoscience shows that woody plant matter is almost completely digested by bacteria living in the Amazon River, and that this tough stuff plays a major part in fueling the river’s breath.
In recent decades the thinning of glaciers at the edge of Antarctica has accelerated, but new UW-led research indicates the changes, though dramatic, cannot be confidently attributed to human-caused global warming.
The UW’s Climate Impacts Group is part of a national report and first-ever national meeting on adapting to the effects of a changing climate.
A volunteer project enlists citizen scientists to transcribe climate observations buried in historic logbooks of U.S. ships that spent time in the Arctic.
One of the most persistent biases in global climate models is due to poor simulation of cloud cover thousands of miles to the south.
New satellite observations confirm a University of Washington analysis that for the past three years found accelerated declines in the volume of Arctic sea ice.
A huge Arctic cyclone in August was not responsible for the historic minimum seen soon after in Arctic sea-ice extent.
A new international assessment found that soot, or black carbon, is a major contributor to global warming — second only to carbon dioxide.
Climatologists have reconciled their measurements of ice loss in Antarctica and Greenland during the past two decades. A second article looks at how to monitor and understand accelerating losses from the planet’s two largest continental ice sheets.