Second, we need to shift to solar, wind, hydro, nuclear, geothermal, and other forms of energy that are not based on fossil fuels. The technology exists to use these alternatives safely, affordably, and at a scale large enough to replace almost all of the coal, and much of the oil, that we use today.
其次，我们需要转向太阳能、风能、水能、核能、地热能和其他形式的不基于化石燃料的能源。我们已经用了技术可以以安全、廉价和足够大的规模使用这些替代能源取代几乎所有我们现在所使用的煤炭和大部分的石油。只有天然气（最清洁的化石燃料）将继续充当主要能源来源直到本世纪中叶。