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Extreme Weather Linked to Global Warming, Nobel Prize-Winning Scientist Says
August 20, 2012 — New scientific analysis strengthens the view that record-breaking summer heat, crop-withering drought and other extreme weather events in recent years do, indeed, result from human activity and ... > full story -
50-Year Decline Found in Some Los Angeles Vehicle-Related Pollutants
August 10, 2012 — In California's Los Angeles Basin, levels of some vehicle-related air pollutants have decreased by about 98 percent since the 1960s, even as area residents now burn three times as much gasoline and ... > full story -
Cloud Seeds and Ozone Holes
July 30, 2012 — New findings on the growth of ice clusters in polar stratospheric clouds could help clarify the process of ozone depletion in the ... > full story -
Climate Change Linked to Ozone Loss: May Result in More Skin Cancer
July 26, 2012 — Scientists are warning that a newly-discovered connection between climate change and depletion of the ozone layer over the US could allow more damaging ultraviolet (UV) radiation to reach Earth's ... > full story -
Extreme Heat Raises Climate Change Questions, Concerns
July 5, 2012 — The recent heat wave baking much of the country has prompted many people to ask: Is this due to climate ... > full story -
Ozone Exposure Linked to Potential Heart Attacks
June 25, 2012 — Young, healthy adult volunteers exposed for two hours to ozone developed physiological changes associated with cardiovascular ailments, according to a small ... > full story -
Volcanic Gases Could Deplete Ozone Layer
June 12, 2012 — Giant volcanic eruptions in Nicaragua over the past 70,000 years could have injected enough gases into the atmosphere to temporarily thin the ozone layer, according to new research. And, if it ... > full story -
Satellite Sees Smoke from Siberian Fires Reach the US Coast
June 12, 2012 — Fires burning in Siberia recently sent smoke across the Pacific Ocean and into the US and Canada. Images of data taken by the nation's newest Earth-observing satellite tracked aerosols from the fires ... > full story -
Humanmade Pollutants May Be Driving Earth's Tropical Belt Expansion: May Impact Large-Scale Atmospheric Circulation
May 16, 2012 — Black carbon aerosols and tropospheric ozone, both humanmade pollutants emitted predominantly in the Northern Hemisphere's low- to mid-latitudes, are most likely pushing the boundary of the tropics ... > full story -
DC3: Chemistry of Thunderstorms
May 9, 2012 — NASA researchers are about to fly off on a campaign that will take them into the heart of thunderstorm country. The Deep Convective Clouds and Chemistry (DC3) field campaign will use an airport in ... > full story
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