Fig. 4: Hotspots of irreversible changes.
From: Widespread irreversible changes in surface temperature and precipitation in response to CO2 forcing
The identified hotspots for irreversible changes are marked in red. A hotspot is defined as the land area where both surface temperature and precipitation show an open-loop response (irreversible change) and a large hysteresis area (>50th percentile) to the CO2 forcing.
