Hydraulic fracturing leaks fewer tons of methane every year than estimated by the Environmental Protection Agency, according to a study by researchers at the University of Texas. The oil and natural gas industry was pleased that the study found that only 1 million tons of methane is leaked per year. The study was funded by the Environmental Defense Fund and nine oil firms. "The industry has led efforts to reduce emissions of methane by developing new technologies and equipment, and these efforts are paying off," said Howard Feldman, American Petroleum Institute's director of regulatory and scientific affairs.

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