GLOBAL LAND-OCEAN TEMPERATURE INDEX
Data source: NASA's Goddard Institute for Space Studies (GISS). Credit: NASA/GISS
This graph shows the change in global surface temperature compared to the long-term average from 1951 to 1980. The year 2020 statistically tied with 2016 for the hottest year on record since recordkeeping began in 1880 (source: NASA/GISS). NASA’s analyses generally matches independent analyses prepared by National Oceanic and Atmospheric Administration (NOAA) and other research groups.
