translation.en: So I then began looking at all the research plots I could over the whole of the Western United States where cattle had been removed to prove that it would stop desertification, but I found the opposite, as we see on this research station, where this grassland that was green in 1961, by 2002 had changed to that situation.
translation.zh: 于是我开始收集和分析 我能找到的整个美国西部 所有的研究站的数据 那些地方的牛群都被移走了 来证明这样会停止荒漠化， 可是我发现的却相反， 看这个研究站， 在1961年这片草地是绿的， 到2002年变成这种状况。