It is absolutely essential to reverse the irrational misuse of nonrenewable resources . for example , fuel - efficient motor vehicles must be developed to reduce oil consumption and alternative energy sources must be found to replace coal 彻底改变对不可再生资源的非理性滥用是绝对有必要的。例如，必须开发节能的机动车减少汽油的消耗量，并且必须找到可替代能源取代煤。
The outlook also looks promising as the us builds more coal - fired power plants with cleaner technologies as it prepares for falling natural gas production ; and coal remains the preferred power source in asia , a region short of alternative energy sources 而且，煤炭资源也大有发展前景,因为美国建造了更多运用净化技术的燃煤发电厂，以备天然气产量的下降；而且在缺乏可替代能源资源的亚洲地区，煤炭仍是首选能源。
As major energy producers and consumers , our two countries should , and are entirely able to , strengthen energy cooperation , including cooperation in the research and development , and application of clean and alternative energy resources and the construction of nuclear power plants 作为能源生产和消费大国，中美应该而且完全可以加强能源领域的合作，包括研发和应用清洁、可替代能源以及核电站建设等方面的互利合作。
New york , dec . 10 , 2007 ( thomson financial delivered by newstex ) - - shares of alternative and clean energy ( nasdaq : clne ) stocks rose monday following positive reports that bode well for the sector , including a world trade organization proposal to lift tariffs on certain clean energy products and services 在世贸组织提议取消对某些清洁能源产品及相关服务关税的消息刺激下，周一可替代能源和清洁能源类股票纷纷上扬。
Similar tests could probably be constructed for other next big things , like videophones or even alternative fuels ( ” imagine a world where we recharge our cars and only get 6 hours of drive time , and then someone invents petroleum - based gasoline … ” ) 同样的测试也可以用在其它的技术身上，比如视频电话甚至是可替代能源， （想象一下我们给我们的汽车充一次电，接下来可以开动6小时，突然有那么一天，有人发明了汽油… … ） 。
