We're not paying a real price for carbon. If we were, we wouldn't be using as much. We need to have the right perspective. It's not just about next quarter's financial return. It's about where we want to be in ten years.

It is certainly true that conservative Christians are much more likely to doubt the reality of climate change than mainline Christians or the unaffiliated. But when we control for political affiliation and for the important role of thought leaders in determining our opinions on social issues such as climate change, most of the faith-related bias disappears.

We have to reach out to churches and schools and help people understand science, and we have to build rapport between scientists and people of faith. Then once we get that understanding and rapport built, then everyone will be on board with climate change.

The first thing we can do as individuals and as communities, like a school or a university or a church, is cut our energy use. Do an energy audit or measure our carbon footprint using online carbon calculators that are free, easy, and cheap. Get a list of the ways that we can stop wasting so much energy and save money.

The word "evangelist" means someone who spreads good news. Studying the impacts of climate change as I do, it's hard to come up with good news. In many ways I feel more like a Cassandra or a Jeremiah than a good-news evangelist.

Huge advances in clean energy technology are happening all the time. Solar and wind are booming. New ways to generate energy from our windows, the paint on our walls, and even our bike paths are being invented all the time. Technology is moving forward, but it needs to be moving forward faster.

It's easier to discredit the science than to say that climate change is a genuine issue but we don't want to do anything about it.