GLOBAL RISE IN CARBON DIOXIDE AND AVERAGE TEMPERATURE This graph illustrates the Average surface temperature Atmospheric CO2 concentrations change in global carbon dioxide in degrees Celsius in parts per million concentrations in atmospheric parts per million and in global surface temperature in degrees +1.2 420 Celsius relative to pre-Industrial average temperatures. Nineteen of the 20 warmest years have +1.0 400 occurred since 2001, and 2020 tied TEMPERATURE for the hottest year on record. +0.8 380 +0.6 CARBON 360 DIOXIDE +0.4 340 +0.2 320 0 300 -0.2 280 1880190019201940 1960 1980 2000 2020 Source: NASA GISS, NOAA NCEI, ESRL. https://medialibrary.climatecentral.org/ resources/national-and-global-emissions-sources-2020. A MORE CONTESTED WORLD 33 Willian Justen de Vasconcellos / Unsplash