I think it's interesting that the United States and Australia are two of the most individualistic nations in the entire world in terms of national personality.

Our carbon emissions have to eventually go to zero. We have to. Otherwise we're never going to have a stable climate and that's what our goal is for human civilization to thrive, a stable climate. We don't want one that's hotter, we don't want one that's colder, we want one that's stable.

If we smoke, there's no magic number of cigarettes, or number of years, that we can smoke before we know we'll get lung cancer.

For Christians, doing something about climate change is about living out our faith - caring for those who need help, our neighbors here at home or on the other side of the world, and taking responsibility for this planet that God created and entrusted to us.

It's a common perception that science and religion are mutually exclusive. But there are many scientists who would consider themselves to be spiritual people.

If you can frame climate change as an alternate religion, or as one more of those issues where the pointy-headed liberal atheist scientists are trying to discredit the Bible, then you've already got a ton of people on your side who are concerned about heresy, other religions, or teaching evolution in schools.

There is no set period of time or total amount of carbon emissions that we can stay below to ensure we stay safe.