China's emissions reversal cause for 'cautious optimism' says study. As part of the Paris Agreement, China pledged to peak its CO2 emissions by 2030. In fact, China may already have fulfilled this commitment, with emissions peaking in 2013 and declining in each year from 2014 to 2016

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China's emissions reversal cause for 'cautious optimism' says study. As part of the Paris Agreement, China pledged to peak its CO2 emissions by 2030. In fact, China may already have fulfilled this commitment, with emissions peaking in 2013 and declining in each year from 2014 to 2016