Forget the tire iron, I want to take him to a bar in eastern Kentucky and then start reading his tweets out loud to the patrons saying, "this is what this man believes!"
Or just drop him off in certain neighborhoods in Detroit and tell him he has to walk a mile to get an Uber that will take him home.
Not just that but history is consistently shown that environmental concerns are a luxury. Primitive man was hard on the environment because it was hard on him. When you might die tomorrow because of weather, disease, or worse, you tend not to give a damn about the "natural world" for the sake of the next generation (especially if you're trying to just get some of your kids to BE that next generation).
Look, there's an easy way to prove this: Put Bob in a gym with an angry tiger (read the tiger some of Bob's tweets before you let it out of its cage). Is Bob really going to pass up the chance to grab a gun and shoot the angry kitty because it's "endangered" and could hurt the environment? Nope! He's going to make Rambo proud. Because immediate survival will always trump long term concerns. Always! Oh and hey... Trump focused on immediate survival, and Clinton talked about long term concerns. Funny that....
Anyway, you want people to care about the environment? Step 1 is to get them rich. Once they're at least semi-comfortable, they can afford to care.