InsideClimate: A dispute between two environmental scientists is creating a controversy over how much methane is leaking from natural gas production and is contributing to global warming. In a new report, Touché Howard, a methane gas expert and air quality consultant, says the flaws he found in a commonly used methane detector caused an acclaimed 2013 study to underestimate the amount of methane emitted by natural gas production. Howard's paper was published today in the peer-reviewed journal Energy Science &...