The Heartland Institute is a conservative climate-denialist thinktank in the US. And this is their new ad campaign:

“The people who still believe in man-made global warming are mostly on the radical fringe of society. This is why the most prominent advocates of global warming aren’t scientists. They are murderers, tyrants, and madmen.”

In addition to Ted Kaczynski, Charles Manson and Fidel Castro are also featured. Osama bin Laden is in the works for a future billboard.

…What, were you hoping that I would say something funny to keep you from throwing your laptop across the room? Sorry, I got nothing. This is too fucked up even for me.

(Via Bad Astronomy)