BBCNEWS BBC News at One November 1, 2021 13:13:00
Must, it is easy to forget that ultimately the emergency climate comes down to a single number. the concentration of carbon in our atmosphere, the measure that greatly determines global temperature, and the changes in that one number is the changes in that one number is the clearest way to chart our own story, for it defines our relationship with our world. for much of humanity's ancient history that number bounced wildly between 180 and 300. and so too did global temperatures. it was a brutal and unpredictable world. at times our ancestors existed only in tiny numbers, butjust over 10,000 yea...
Source: archive.org