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File: IPCC_AR6_WGI_TS-CO21950-2100.gif

Two graphs with colored lines showing (left) past and different future annual carbon dioxide emissions with diffrent socioeconomic pathways and (right) past and future atmospheric carbon dioxide amounts for those pathways

Image caption

Plausible future socioeconomic pathways for annual carbon dioxide emissions (left) and the resulting atmospheric carbon dioxide concentrations (right) through the end of the century. A shared socioeconomic pathway is an internally consistent set of assumptions about future population growth, global and regional economic activity, and technological advances. Models use these pathways to project a range of possible future carbon dioxide emissions; for simplicity, the image only shows the only the mean value. NOAA Climate.gov graphic adapted from figure TS.4 in the IPCC Sixth Assessment Report Technical Summary.