Research Features

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From Ash in the Wind to Smoke from the Stack

Aerosols don't just come from spray cans. Any airborne particle or droplet, whether from a canister, the smokestack of a factory, or a dust storm, is an aerosol. (Apr '10)
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Cold Snaps Plus Global Warming Do Add Up

Even as the globally averaged temperature trends upward, extended periods of regionally cool weather and even historic snowfalls can still occur. (Feb '10)
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Catalog of Change

From declining fish catches in African lakes to shortened hibernation of North American mammals, climate change is having observable impacts around the world. (Nov '09)
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Think Global, Act Local

A study that examined how pollution causes variations in how much solar radiation reaches Earth's surface used both local and satellite data. (Nov '09)
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Linking Climate and Habitability

Scientists are now learning how small shifts in climate can have dramatic consequences for the planet's environment and the life that depends on it. (Jun '09)
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Earth's Temperature Tracker

After tracking Earth temperature for decades, NASA scientist James Hansen is confident the global warming trend observed since 1880 is mainly the result of human-produced greenhouse gases. (Nov '07)
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Study the Past, Predict the Future

Scientists use the theories they have constructed to explain the paleoclimate data record to understand modern climate and to predict how we can expect it to change in coming years or decades. (Nov '06)
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Methane: Climate Super-Star

In 30 years, our knowledge of methane has traveled from obscure trace gas to important greenhouse forcing, both natural and anthropogenic. What caused this change, and what role has methane played in climate, both in the past and future. (Sep. '04)
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Atmospheric Tango

Ozone affects climate, and climate affects ozone. Temperature, humidity, winds, and the presence of other chemicals in the atmosphere influence ozone formation, and the presence of ozone, in turn, affects those atmospheric constituents. (Feb. '04)
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Nov. 2001: Global Warming in the 21st Century: An Alternative Scenario

May 2001: Forcing Agents Underlying Climate Change

Aug. 1997: Clouds in Midlatitude Storms

Apr. 1997: The Climate of the Pliocene: Simulating Earth's Last Great Warm Period