Record-high greenhouse gas emissions are set to exhaust the planet’s “carbon budget” within three years, passing another ominous milestone that would minimise the chance of limiting warming to 1.5C, scientists have said.
The carbon budget represents the maximum amount of greenhouse gases that can be emitted to still have a 50 per cent chance of keeping warming to the 2015 Paris Agreement’s goal of 1.5C above the pre-industrial level.
That target looked increasingly out of reach, said Joeri Rogelj, a climate science and policy professor at Imperial College London and co-author of a study by a team of more than 60 international scientists published in the journal Earth System Science Data.
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