Five-Year Global Temperature Anomalies from 1880 to 2014

NASA Finds 2014 Was Warmest Year in Modern Record The year 2014 ranks as Earth's warmest since 1880, according to an analysis by NASA scientists. The 10 warmest years in the instrumental record, with the exception of 1998, have now occurred since 2000. This trend continues a long-term warming of the planet, according to an analysis of surface temperature measurements by scientists at NASA's Goddard Institute of Space Studies (GISS) in New York. In an independent analysis of the raw data, NOAA scientists also found 2014 to be the warmest on record. For understanding climate change, the long-term trend of rising temperatures across the planet is more important than any year's individual ranking. These rankings can be sensitive to analysis methods and sampling. While 2014 ranks as the warmest year in NASA's global temperature record, it is statistically close to the values from 2010 and 2005, the next warmest years. Since 1880, the average surface temperature of Earth has warmed by about 1.4 degrees Fahrenheit (0.8 degrees Celsius), a trend that is largely driven by the increase in carbon dioxide and other human emissions into the planet's atmosphere. The majority of that warming has occurred in the past three decades. Regional differences in temperature in any year are more strongly affected by weather dynamics than the global mean. For example, in the U.S. in 2014, parts of the Midwest and East Coast were anomalously cool, while Alaska and three western U.S. states - California, Arizona and Nevada - recorded their warmest years on record, according to NOAA, which assesses official U.S. temperature records. The GISTEMP analysis website is located at: http://ift.tt/uAzy6c



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2014 Global Temperature Anomalies: United States to Global view

The year 2014 ranks as Earth's warmest since 1880, according to an analysis by NASA scientists. The 10 warmest years in the instrumental record, with the exception of 1998, have now occurred since 2000. This trend continues a long-term warming of the planet, according to an analysis of surface temperature measurements by scientists at NASA's Goddard Institute of Space Studies (GISS) in New York. In an independent analysis of the raw data, NOAA scientists also found 2014 to be the warmest on record. For understanding climate change, the long-term trend of rising temperatures across the planet is more important than any year's individual ranking. These rankings can be sensitive to analysis methods and sampling. While 2014 ranks as the warmest year in NASA's global temperature record, it is statistically close to the values from 2010 and 2005, the next warmest years. Since 1880, the average surface temperature of Earth has warmed by about 1.4 degrees Fahrenheit (0.8 degrees Celsius), a trend that is largely driven by the increase in carbon dioxide and other human emissions into the planet's atmosphere. The majority of that warming has occurred in the past three decades. Regional differences in temperature in any year are more strongly affected by weather dynamics than the global mean. For example, in the U.S. in 2014, parts of the Midwest and East Coast were anomalously cool, while Alaska and three western U.S. states - California, Arizona and Nevada - recorded their warmest years on record, according to NOAA, which assesses official U.S. temperature records. The GISTEMP analysis website is located at: http://ift.tt/uAzy6c



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Global Temperature Anomalies from November 2014

Residents of the eastern United States know that the temperature was colder then the average temperature in November 2014. This data visualization of NASA's Goddard Institute for Space Studies (GISS) Global temperature anomalies for January of 2014 show the United States and then zooms out to show the global picture. Temperature anomalies indicate how much warmer or colder it is than normal for a particular place and time. For more information on the GISTEMP, see the GISTEMP analysis website located at: http://ift.tt/uAzy6c



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Multi-year Arctic Sea Ice 2014

The most visible change in the Arctic region in recent years has been the rapid decline of the perennial ice cover. The perennial ice is the portion of the sea ice floating on the surface of the ocean that survives the summer. This ice that spans multiple years represents the thickest component of the sea ice cover.This visualization shows the perennial Arctic sea ice from 1979 to 2014. A graph overlay shows the area's size measured in million square kilometers for each year.



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