Every discussion or argument about climate change pretty much revolves around the same issues. The Climate Reality Project boils it down to a dozen questions most often asked by people who don’t believe that climate change is here. Don’t be put off by the title; just go there and see if you’ve heard (or asked) any and see what the answers are.
Go to “The 12 Questions Every Climate Activist Hears and What to Say.” Personally, I’m a “believer,” and I still learned a lot from this article.