Manmade pollutants may be driving Earth's tropical belt expansion
Black carbon aerosols and tropospheric ozone, both manmade pollutants emitted predominantly in the Northern Hemisphere's low- to mid-latitudes, are most likely pushing the boundary of the tropics further poleward in that hemisphere, new research by a team of scientists shows. View More (2012-05-17)
University of Pittsburgh Geologists Map Prehistoric Climate Changes in Canada's Yukon Territory
Researchers at the University of Pittsburgh have joined an international group of scientists to study past climate changes in the Arctic. View More (2012-05-09)
Weather records due to climate change: A game with loaded dice
The past decade has been one of unprecedented weather extremes. Scientists of the Potsdam Institute for Climate Impact Research (PIK) in Germany argue that the high incidence of extremes is not merely accidental. View More (2012-03-26)
UN scientists warn of increased groundwater demands due to climate change
Climate change has been studied extensively, but a new body of research guided by a San Francisco State University hydrologist looks beneath the surface of the phenomenon and finds that climate change will put particular strain on one of our most important natural resources: groundwater. View More (2012-03-06)
New Study Confirms Low Levels of Fallout from Fukushima and Enhances Knowledge
Fallout from the 2011 Fukushima Dai-ichi nuclear power facility in Japan was measured in minimal amounts in precipitation in the United States in about 20 percent of 167 sites sampled in a nationwide study released today. View More (2012-02-23)
Climate change may increase risk of water shortages in hundreds of US counties by 2050
More than 1 in 3 counties in the United States could face a "high" or "extreme" risk of water shortages due to climate change by the middle of the 21st century. View More (2012-02-16)
Land-cover changes do not impact glacier loss
The composition of land surface - such as vegetation type and land use - regulates the interaction of radiation, sensible heat and humidity between the land surface and the atmosphere and, thus, influences ground level climate directly. View More (2012-02-06)
NASA's GCPEX Mission: What We Don't Know about Snow
Predicting the future is always a tricky business -- just watch a TV weather report. Weather forecasts have come a long way, but almost every season there's a snowstorm that seems to come out of nowhere, or one that's forecast as 'the big one' that turns out to be a total bust. View More (2012-02-02)
UMass Amherst Climate Researchers Find Evidence of Past Southern Hemisphere Rainfall Cycles Related to Antarctic Temperatures
Geoscientists at the University of Massachusetts Amherst and the University of Minnesota this week published the first evidence that warm-cold climate oscillations well known in the Northern Hemisphere over the most recent glacial period also appear as tropical rainfall variations in the Amazon Basin of South America. View More (2012-01-18)
Cold winters caused by warmer summers, research suggests
Scientists have offered up a convincing explanation for the harsh winters recently experienced in the Northern Hemisphere; increasing temperatures and melting ice in the Arctic regions creating more snowfall in the autumn months at lower latitudes. View More (2012-01-13)
Colorado mountain hail may disappear in a warmer future
Summertime hail could all but disappear from the eastern flank of Colorado's Rocky Mountains by 2070, according to a new modeling study by scientists from NOAA and several other institutions. View More (2012-01-09)
Data-driven tools cast geographical patterns of rainfall extremes in new light
Using statistical analysis methods to examine rainfall extremes in India, a team of researchers has made a discovery that resolves an ongoing debate in published findings and offers new insights. View More (2011-12-20)
Global winds could explain record rains, tornadoes
Two talks at a scientific conference this week will propose a common root for an enormous deluge in western Tennessee in May 2010, and a historic outbreak of tornadoes centered on Alabama in April 2011. View More (2011-12-06)
Study Details Links Between Climate, Groundwater Availability - Will Help Water Managers Prepare For Drought
Everyone knows that climate affects our water supply, but new research from North Carolina State University gives scientists and water-resource managers an unprecedented level of detail on how climate and precipitation influence groundwater and surface water levels in the Southeast. View More (2011-11-18)
Long-term study shows acid pollution in rain decreased with emissions
Emissions regulations do have an environmental impact, according to a long-term study of acidic rainfall by researchers at the University of Illinois. View More (2011-11-17)
Air pollution a culprit in worsening drought and flooding
Increases in air pollution and other particulate matter in the atmosphere can strongly affect cloud development in ways that reduce precipitation in dry regions or seasons. View More (2011-11-16)
Air Pollution a Culprit in Worsening Drought and Flooding
Increases in air pollution and other particulate matter in the atmosphere can strongly affect cloud development in ways that reduce precipitation in dry regions or seasons. View More (2011-11-15)
Rising air pollution worsens drought, flooding, UMD-led study shows
Increases in air pollution and other particulate matter in the atmosphere can strongly affect cloud development in ways that reduce precipitation in dry regions or seasons, while increasing rain, snowfall and the intensity of severe storms in wet regions or seasons. View More (2011-11-14)
Precipitation variability in Northeast, Southwest linked in 1,000-year analysis
An analysis of precipitation data collected from a lakebed in New York and a Rhode Island estuary has provided a link between the variability of precipitation in the Northeast with that of the Southwest. The results validate climate models that predict an increasing number of extreme weather events. View More (2011-11-09)
Climate change causing massive movement of tree species across the West
A huge "migration" of trees has begun across much of the West due to global warming, insect attack, diseases and fire, and many tree species are projected to decline or die out in regions where they have been present for centuries, while others move in and replace them. View More (2011-11-03)
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