地球海洋里蕴藏着足以持续使用数百万年的潜在能源。海水含有氘,即氢的一种重同位素。它是核聚变反应堆的主要燃料。一升海水中所含的氘一旦被提取出来,它可能产生的能量相当于300升汽油燃烧产生的能量。尽管这种潜在的能源要变成现实需几十年的时间,但已经取得了重大进展。当今科学技术的发展正在使核聚变技术日趋成 The Earth’s oceans contain potential energy that can last millions of years. Sea water contains deuterium, a heavy isotope of hydrogen. It is the main fuel for nuclear fusion reactors. Once a liter of seawater contains deuterium, once it is extracted, it may produce as much energy as 300 liters of gasoline. Although this potential source of energy will take decades to come by itself, significant progress has been made. The development of science and technology is now making nuclear fusion technology increasingly mature