When we again weigh each sensitivity by the percent-area for the Earth, our global average ECS is 7.2 °C per doubling of CO2, much higher than the most recent IPCC estimates of 2.3 to 4.5 °C and consistent with some of the latest state-of-the-art models which suggest ca. 5.2 °C

2.3c means crop failures and food shortages globally. 5.2c means the end of our civilisation. 7.2c means the end of our species.