Global CO2 emissions caused mainly by burning fossil fuels are set to rebound in 2021 to pre-Covid levels, with China’s share increasing to nearly a third of the total, according to an assessment published Thursday. Overall, CO2 pollution this year will be just shy of the record set in 2019, according to the annual report from the Global Carbon Project consortium, released as nearly 200 nations at the COP26 climate summit confront the threat of catastrophic warming.
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