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Methane 2017Methane emissions have continued to rise over the past decade -- that yields an estimated Global Warming of 4.3 °C by year 2100 Current trajectories in socioeconomic development also suggest the world is headed to higher emissions over the next decade . Estimates show increases in methane of 8.5ppb(parts
per billion) in 2018 and 10.7ppb in 2019 ,
two of the four highest annual growth rates since 2000 . Climate policies have yet to alter the global emissions trajectory.
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