Climate Change
Climate Change represents changes to Earth's temperature and weather patterns. It can be shown in the Intel tab.
Climate Change is shown in the Intel menu and measured as Global Temperature Anomaly. It is caused by Atmospheric Carbon Dioxide above 325.68 ppm, Atmospheric Methane above 1.3 ppm, Atmospheric Nitrous Oxide above 0.29 ppm and Excess Stratospheric Aerosols above 0ppm.
Climate change can be worsened by things such as the Spoils and Economy priorities. It can be improved by using the Welfare priority. Certain regions are affected more or less by climate change. Every use of a Stretegic Nuclear Barrage increases Excess Stratospheric Aerosols by 0.00777 ppm.
Climate change lowers annual GDP in every nation. Letting global temperature become too high or low will eventually alter Earth's apearance and cause a global crop failure. This will reduce every nation's GDP by 50%, Cohesion by 6 and population by a variable amount.