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Time Series: 1979-2017
Data source: Satellite observations.
Credit: NASA Scientific Visualization Studio
Credit: NASA Scientific Visualization Studio
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This visualization shows the annual Arctic sea ice minimum since 1979. At the end of each summer, the sea ice cover reaches its minimum extent, leaving what is called the perennial ice cover. The area of the perennial ice has been steadily decreasing since the satellite record began in 1979.
Sea Level Change: Southeastern US
Credit: Center for Remote Sensing of Ice Sheets
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Sea Level Change: Europe
Credit: Center for Remote Sensing of Ice Sheets
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Sea Level Change: Amazon
Credit: Center for Remote Sensing of Ice Sheets
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Sea Level Change: Southeast Asia
Credit: Center for Remote Sensing of Ice Sheets
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Recent satellite observations have detected a thinning of parts of the Greenland ice sheet at lower elevations. A partial melting of this ice sheet would cause a 1-meter (3-foot) rise. If melted completely, the Greenland ice sheet contains enough water to raise sea level by 5-7 meters (16-23 feet).
This visualization shows the effect on coastal regions for each meter of sea level rise, up to 6 meters (19.7 feet). Land that would be covered in water is shaded red.
Time Series: 2002-2016
Data source: Atmospheric Infrared Sounder (AIRS).
Credit: NASA
Credit: NASA
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This time series shows global changes in the concentration and distribution of carbon dioxide since 2002 at an altitude range of 1.9 to 8 miles. The yellow-to-red regions indicate higher concentrations of CO2, while blue-to-green areas indicate lower concentrations, measured in parts per million.
Time Series: 1884 to 2017
Data source: NASA/GISS
Credit: NASA Scientific Visualization Studio
Credit: NASA Scientific Visualization Studio
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This color-coded map shows a progression of changing global surface temperatures since 1884. Dark blue indicates areas cooler than average. Dark red indicates areas warmer than average.