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From The Guardian: “The world’s leading climate scientists have warned there is only a dozen years for global warming to be kept to a maximum of 1.5 degrees C [2.7 degrees F], beyond which even half a degree will significantly worsen the risks of drought, floods, extreme heat and poverty for hundreds of millions of people.

“The authors of the landmark report by the UN Intergovernmental Panel on Climate Change (IPCC) released on Monday say urgent and unprecedented changes are needed to reach the target, which they say 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.

“‘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,’ said Debra Roberts, a co-chair of the working group on impacts. ‘This is the largest clarion bell from the science community and I hope it mobilises people and dents the mood of complacency.’”

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