That changed only in the late 1950’s, when Charles Keeling started to measure CO2 with unprecedented accuracy in Antarctica and on Mauna Loa in Hawaii, far away from any sources. By 1960, he was able to prove that CO2 was indeed on the rise.
直到20世纪50年代情况才发生了变化，查尔斯·基林开始以前所未有的精度测量南极洲和夏威夷莫纳罗亚山的二氧化碳含量，这两个测量点都远离任何热源。直到1960年，他才成功地证实了二氧化碳含量的确呈上升趋势。