A documentary that declares the gas industry's portrayal of natural gas as a clean and safe alternative to oil is a myth, and that fracked wells inevitably leak over time, contaminating water and air, hurting families, and endangering the earth's climate with the potent greenhouse gas, and methane. 　　译文(3): 一部纪录片宣称，天然气行业将天然气描述为清洁安全的石油替代品，这是一个神话，随着时间的推移，压裂井不可避免地会泄漏，污染水和空气，伤害家庭，并因强大的温室气体和甲烷危及地球气候。