a) 1765- 2015: 1°C
The first 1°C of global warming took 250 years.
b) 2015- 2040: 2°C
The next 1°C of warming is set to take 25 years.
c) 2040- 2050: 3°C
Could the third 1°C of warming take 10 years?
This is abrupt climate change.
We need radical emergency action.
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