The Fundamentalists: Humanity is too insignificant to impact Earth's fate: if the polar ice caps are melting and turning Minnesota into an Arctic hellhole in January or if India and China are turning into desert, it was God's plan for us anyhow, and we shouldn't even TRY to change things.

The Randist 'Libertarians': Global Warming is simply an ideological creation to support government intrusion into people’s lives and to perpetuate the 'New World Order'(tm), etc.; if you disagree, you are a statist/Marxist/socialist/etc.

The Tillerson/Booker types: What's the point? None of these hare-brained 'solutions' will work anyway. We should just adapt to whatever comes and keep on burning that gas.

And of course, a whole other class of trolls-the "Doomsday" set: Global warming is irreversible. Humanity will go extinct because of climate change. Earth can and will turn into Venus. And there is nothing we can do to stop it because it is all inevitable and anyone who says otherwise is deluded, a moron, etc., because we are always right.

A few additional archetypes in the comments section, but otherwise pretty much comprehensive.

"Therefore climate change is not happening and if it is it is not humans and if it is it is a good thing and if it isn’t it is still better than taxes."