"They fund a whole series of institutions doing science trolling." What institutions? What evidence is there the Koch brothers are involved?
Are you joking? Sorry for linking WP, but the information there is consistent with what is available everywhere else and it is more centralized.
Here are the two first I could find, there are many others but this should be enough: The Heritage Foundation and The Cato Institute. As for what evidence that the Koch brothers are involved? They are the official founders. For all the evil they do they do try to hide their involvement in political trolling of science.
Sorry, make that: they do not try to hide..