To track where the script comes from: My Swedish is nonexistent, but it seems from this page that Folke Stenman has written a commentary or something and linked to junkscience.com. A wiki search for junkscience.com yields its author, who runs and is linked to a number of foundations supported by Big Oil and Big Tobacco.

Don't know if Folke Stenman himself is getting money for his denialism, but that's where he gets his talking points from. Klaus will quite likely read the same site, or get his feed from some other source reading off the same script.