I don't know where I first read it, but I believed it then and I believe it now. One of the best ways to fight ignorance, especially embattled ignorance, is through comedy. There is no rational way to persuade people who do not believe in science or empirical evidence. So, instead of pursuing a logical path, you have to find a way around it.
Comedy is one of those ways (narrative is another way, but that is a topic for another day). By using jokes, you can break the ice, catch the other person off guard, and stick something in his or her brain that will last a lot longer than an impersonal and disregarded fact.
Here is my small collection of ammunition, to which I hope to add more as time goes on.
1. Obama talking about climate change with help from his "anger translator".
2. Daily Show's John Oliver on the real global warming debate. God bless Bill Nye!
3. Sierra Club's Eco-Comedy Video Competition Winners -- This one is from 2013 on plastic bags. Hilarious!
4. Bikini's as proof of global warming