People believe what they want to believe. If they have no reason for their belief they simply make up a reason.
NE has a good point about the ability to discuss an issue without name calling has really declined over the last decades.
Below is a piece from GT's Judith Curry. You can argue either side & find statistics to back up your claims. What I don't understand is the reluctance from the "Climate Changers" to provide the "Climate Deniers" the data for peer review. If there's nothing to hide there than they should just hand over access to the data & let them derive their own conclusions.
From my experience every issue devolves into 3 buckets: power, money & sex. I think we can rule out sex here. This issue is most clearly about power & money. On one hand you have the "Climate Changers". They want power to tell you & me what I should be doing, ie not diving a car or at least driving one that meets their requirements (electric, low emissions, high MPG, etc), not flying a personal jet around, not eating beef, etc. This power base just wants their way so they can promote their agendas. One the other hand you've got the "Climate Deniers" that want at drive their SUVs, eat a nice juicy ribeye, jet off to Aspen when they feel like, etc. It's the eternal struggle for power & money. If the "Climate Changers" get more of their way, oil companies for example have more of their power & money taken away and it's redistributed to solar panel builders for example. If the "Climate Deniers" get more of their way environmental regulations are relaxed & they make more money for example.
Now I'm a Libertarian. I hate people telling me what to do despite having served in the military for most of my career. If I want to not pollute the environment because you've convinced me I'm going to leave the world a better place for my kids then I'll make that decision. If I think that eating a big hunk of beef makes me happy & my kids are still going to be fine then that's my choice. We're supposed to be a country of laws. What's happening here is the system is being undermined outside of the constitutional processes that's supposed to govern us by I believe "well intentioned" people making decisions for us the majority of us don't care for. I don't impugn their motives, they just do not have the authority under our laws to do what their doing & the adults in the room have not provided adequate oversight to properly govern them.
I believe in America we have the God given right to make free choices within the bounds of the constitution. Where all this stuff hacks me off is when I have people trying to prevent me from doing what I want with my life. It's particularly annoying when they get caught red handed lying & cheating to do so. It has been like this throughout world history, just now the elites are subjected to exposure of their deeds more easily because of a much more educated population & an information delivery system via the internet they cannot suppress as easily- gotta love Facebook for trying to tell me what I can think!
http://curry.eas.gatech.edu/climate/towards_rebuilding_trust.html