There are politically motivated “think tanks” that pump out a lot of misinformation, in a similar vein as the tobacco lobbies used to do.

Either they claim that there’s no such thing as climate change, or “rising temperatures are of all times”, or “we humans didn’t cause climate change” to (in my country) “we’re just a tiny country, what we do, doesn’t make any difference on a global scale, because (insert third world country) will just continue to harm the environment”.

Some people (who seemingly are bereft of any conscience or empathy) are susceptible to such propaganda, because it makes them feel better than with the news about climate change.