Projected temperature increase by 2100 compared to pre-industrial based on different future greenhouse gas pathways. If carbon dioxide emissions peak this decade and reach net zero by 2050, warming will likely be limited to the green dot: about 1.5 degrees Celsius (2.7 degrees Fahrenheit). If all pledges made by countries at COP26 last year are implemented in full and on time, warming will likely be around the yellow dot: 1.8 degrees C (3.2 F). If only policies in place or under development in 2021 wind up being implemented, (blue dot) warming will likely be more than 2.5 C (more than 4.5 F). NOAA Climate.gov graphic, derived from original by the International Energy Administration from their 2022 World Energy Outlook. Climate.gov is solely liable and responsible for this derived work. Used under a Creative Commons license.