Sentences with phrase «actual leak rate»

The actual leak rate is poorly known, but in any reasonable case U.S. shale gas production is a small, but not trivial, contributor to the global methane increase over the last several years.

«There's quite a bit of uncertainty and disagreement about what the actual leak rate is,» said Tom Moore, Western Regional Air Partnership Air Quality Program Manager for the Western States Air Resources Council in Fort Collins, Colo. «That makes it difficult to understand how much any particular regulation would reduce methane leakage.»