The world’s leading climate scientists have warned there is only 12 years to be kept to a maximum of 1.5C and avoid catastrophic environmental breakdown.
The authors of the landmark report by the UN Intergovernmental Panel on Climate Change (IPCC) said urgent and unprecedented changes are needed to reach the target, which is affordable and feasible although it lies at the most ambitious end of the Paris agreement pledge to keep temperatures between 1.5C and 2C.
Debra Roberts, a co-chair of the IPCC working group, said: “It’s a line in the sand and what it says to our species is that this is the moment and we must act now. This is the largest clarion bell from the science community and I hope it mobilises people and dents the mood of complacency.”
Political leaders have been urged to act on the report. Christiana Figueres, the former UN climate chief who led the historic Paris agreement of 2015, said: “There is nothing opaque about this new data. The illustrations of mounting impacts, the fast-approaching and irreversible tipping points are visceral versions of a future that no policy-maker could wish to usher in or be responsible for.”