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In this file photo, pumpjacks work in a field near Lovington, New Mexico. (AP Photo/Charlie Riedel, File) At a Glance The research says the EPA undercounts the emissions in an annual report.It specifically looks at oil and natural gas production.Methane is a more potent greenhouse gas than carbon dioxide. Methane emissions from the production of oil and natural gas are up to 90% higher than annual EPA estimates, according to a new study. The research, Monday in the journal Atmospheric...