更多、更高效的天然气大胆设想:从永久冻土或海床中提取冰冻状态下的天然气,为新型、高效的涡轮机提供能量。天然气目前为全美1/4的家庭提供电能,它是最清洁的化石燃料,碳排放只有煤的一半。“如果不得不使用化石燃料,又要考虑环保,那就只有烧天然气了,”普惠公司负责技术和环境的副总裁艾伦.艾普斯坦说,该公司主要生产燃气涡轮机。天然气的储备丰富,应用前景广泛。仅2011年的前5个月,天然气的使用量就增加了5%。全美已探明的天然 More, More Efficient Natural Gas Daring Assumption: Extracting frozen natural gas from permafrost or the sea floor to power new, more efficient turbines. Natural gas is currently providing electricity to 1/4 of the nation’s households, the cleanest fossil fuel that emits half of the carbon it emits. “If you have to use fossil fuels, but also consider environmental protection, it will only burn natural gas, ” said Alan Epstein, vice president of technology and environment at Pratt & Whitney, the company that produces gas turbines. Natural gas reserves are abundant and have wide application prospects. In the first five months of 2011 alone, the use of natural gas increased by 5%. The United States has proven natural