Man made climate change is real. I mean, you can't really expect that over 6 billion life forms don't effect the environment they live in. The real question is how large is it's impact on the planet, how much is actually man made, and how much can we reduce it by cutting this or that. Personally I don't think it would make that big a difference, and that forcing the rush and implementation of inferior technology/energy would be a huge waste of time and money.