File name: 1900-2012-temp-trend-610.png
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Observed trend in temperature from 1900 to 2012; yellow to red indicates warming, while shades of blue indicate cooling. Gray indicates areas for which there are no data. There are substantial regional variations in trends across the planet, though the overall trend is warming. Map from FAQ appendix of the 2014 National Climate Assessment. Originally provided by NOAA NCDC.