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Photo of thermostat dial labeled as Carbon Dioxide dial  

Clouds – An Unwelcome Blanket for Arctic Sea Ice?
A study of Arctic climate finds that cloud cover mostly oscillates between two widely different states, which affects our understanding of and ability to predict sea ice decline.
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Photo of thermostat dial labeled as Carbon Dioxide dial  

How Carbon Dioxide Controls Earth's Temperature
A new atmosphere-ocean climate modeling study shows that the planet's temperature depends, ultimately, on the atmospheric level of carbon dioxide.
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Detail of image map showing  

Measuring the Greenhouse Effect
Water vapor and carbon dioxide are key greenhouse gases in the atmosphere. But which is more important, and how do they interact?
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Photo of smoke in atmosphere  

Does Black Carbon Increase Cooling from Clouds?
Soot particles in the atmosphere absorb radiation, but studies suggest their effect on cloud cover and thickness may promote an overall net cooling.
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Photo of pipe sending smoke and soot into blue sky  

Thumbs Up or Down for Soot Mitigation?
The climatic effects of soot emissions depend greatly on its composition. The result of reducing emissions will vary depending on what sources are targeted.
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Photo of farming irrigation system  

Irrigation and the 20th Century Climate
Modeling the effect of irrigation on temperature and precipitation over the past century points to the need to include it in future studies, especially where water resources are not sustainable.
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Goddard Introduces NASA Center for Climate Simulation
NASA GSFC recently introduced an integrated set of supercomputing, visualization, and data interaction technologies that will enhance agency capabilities in weather and climate prediction research.
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Photo of Dave Young  

Just 5 Questions: Fingerprinting the Climate
Dave Young is the Project Scientist for NASA’s CLimate Absolute Radiance and REfractivity Observatory (CLARREO). CLARREO is a climate-focused mission set to launch in the latter part of this decade. ...
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Photo of cars on highway  

Cars Emerge as Key Atmospheric Warming Force
A new NASA study indicates that motor vehicles are the greatest contributor to atmospheric warming. They release greenhouse gases that promote warming, while emitting few aerosols that couteract it.
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Still from Climate in a Box video  

Climate in a Box Debuts
NASA has begun a project to make its climate and Earth science models more accessible to a broader community.
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27 kilometer simulation   Aerosols Boost Warming Potential of Some Gases
Certain gases that cause warming are so closely linked with aerosol production that the emissions of one type of pollutant can affect the quantity of the other.
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Last Updated: 04/01/2011