Texas oil and gas company Triple Crown discovered it was leaking 20 times more methane than the Environmental Protection Agency estimated after it began a rigorous leak detection program. Source: Triple Crown No one knows how long natural gas had been seeping out of a meter at the Greenville Downtown Airport in South Carolina. A satellite chartered by Duke Energy Corp. , the power company for the airport, eventually spotted the billowing greenhouse gas, and workers came to fix the leak. But in the intervening time between leak and discovery, an untold amount of methane—the main component of natural gas—escaped into the atmosphere. For the next two decades, all that gas will trap 84 times more heat than a similar amount of carbon dioxide. Duke says it’s the first U.S. utility to use satellites to search their own infrastructure for invisible leaks, both to save fuel that’s rarely commanded […]