Whoops, I mean man made up
Club of Rome, a global think-tank, has admitted to using “global warming” as an impetus to reduce the population of the world—
In searching for a new enemy to unite us, we came up with the idea that pollution, the threat of global warming, water shortages, famine and the like would fit the bill. All these dangers are caused by human intervention, and it is only through changed attitudes and behavior that they can be overcome. The real enemy then, is humanity itself. —Alexander King & Bertrand Schneider. The First Global Revolution, p. 75, 1993.
http://12160.info/profiles/blogs/club-of-rome-group-that-admitted-manufacturing-global-warming