The basic situation has been clear for years. Global use of fossil fuels is contributing to a sharp rise in atmospheric carbon dioxide, which is causing the Earth to warm.
多年以来，基本的情况已经非常明了。化石燃料的全球性使用正导致大气中二氧化碳含量的急剧升高，而这又使地球变暖。降水模式也正发生着改变。沙漠和干燥地区变得更为干旱。