the issue here is that the 'opposition', for lack of a better word, is thoroughly disinterested in facts. any discussion of the facts is reasonable, don't get me wrong. but most people advocating against climate change- or anything else, for that matter- are not on about the science or the facts.
in those cases, the only real way to 'get through' to them is find somebody who has some close relationship that holds their respect, and have them talk with them. Beyond that... they're pretty much goners.