This chart shows the relationship between population growth trends and global warming. We employ the Global Change Assessment Model (GCAM) to estimate the effects of population growth on the change global average temperature by 2100. Observing that a larger population supports a larger economy, which translates in close proportion into additional releases of carbon dioxide (CO2), we find that an additional 1 percentage point of population growth through the end of the century would coincide with about an additional 2 degrees Fahrenheit in average global temperatures.
This chart shows the relationship between population growth trends and global warming. We employ the Global Change Assessment Model (GCAM) to estimate the effects of population growth on the change global average temperature by 2100. Observing that a larger population supports a larger economy, which translates in close proportion into additional releases of carbon dioxide (CO2), we find that an additional 1 percentage point of population growth through the end of the century would coincide with about an additional 2 degrees Fahrenheit in average global temperatures.