Find two friends who have strong but opposing views of climate change.

(a) Ask both of them why they believe what they do and what would be required for them to adopt the opposing view. It is important to understand where their views come from; if they argue, say, that glaciers are retreating or not, find out where they get their facts.

(b) Which of these positions appears more credible? Why?

(c) Can you use their views on climate change to predict their views on other issues (abortion, gun control) and their political affiliation?