Canada has underestimated its methane emissions from abandoned wells by 150 percent, and the USA by around 20%. While methane emissions from abandoned wells were reported to the United Nations as part of the U.S. and Canada’s greenhouse gas inventories, experts worry that there could be as many as 500,000 undocumented wells in the USA and 60,000 in Canada contributing to these emissions. In 2018, in the USA alone, 3.2 million abandoned oil and gas wells emitted 281 kilotons of methane, equivalent in terms of climate change to consuming 16 million barrels of crude oil. - OilPrice.com
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