Climate change poses existential threat to civilisation
World may already have crossed a series of climate tipping points.
Tipping points could be passed with between 1C and 2C of heating.
One tipping point may fuel others, leading to a cascade.
We might have already lost control of the Earth’s climate.
Preliminary results from the latest climate models suggest global heating will be greater than expected.
University of Exeter commentary article in the journal Nature.