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US greenhouse gas emissions rebounded in 2021. Price-driven switches from gas to coal, increases in freight trucking drove increase. 2021 emissions were 17.4% below 2005 levels, up from 22.2% below 2005 levels in 2020. carbonbrief.org/coal-trucks-push-us-off-track-climate-targets-2021?utm_content=buffer15746&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer