The online stranger's argument was convincing because they brought a lot of evidence from research papers to general climatologist opinions which completely debunked a lot of the talking points I'd used (without me exposing those in the conversation).

It also made me go back on my own sources and question where they were coming from. Let's just say the anti climate change positions become a lot less convincing when you dig into their sourcing and find a large number of them literally funded by the likes of Koch industries or Glenn Beck's personal companies.