CAMBRIDGE, Massachusetts, Sept. 12 -- The Massachusetts Institute of Technology issued the following news: * * * Lidar helps gas industry find methane leaks and avoid costly losses * Each year, the U.S. energy industry loses an estimated 3 percent of its natural gas production, valued at $1 billion in revenue, to leaky infrastructure. Escaping invisibly into the air, these methane gas plumes can now be detected, imaged, and measured using a specialized lidar flown on small aircraft. This l  more