Depending on how quickly you get ocean rise, you have people who live in river deltas [at risk]. Bangladesh is largely a river delta, and the rising sea level means that when storms come in, the human sanitation is backing up, the ability to farm, it's destructive-type situations like you saw in New Orleans with Katrina. You're increasing the frequency of that stuff in low-lying areas fairly dramatically.

Now, we put out a lot of carbon dioxide every year, over 26 billion tons. For each American, it's about 20 tons. For people in poor countries, it's less than one ton. It's an average of about five tons for everyone on the planet. And, somehow, we have to make changes that will bring that down to zero.

Television is not real life. In real life people actually have to leave the coffee shop and go to jobs.

The information society should serve all of its citizens, not only the technically sophisticated and economically privileged.

Take agriculture, where we haven't done much, or sanitation; saying, "okay, we will be able to make a really huge effort there." It really energized the foundation and half of what we've gotten done in this last decade is because Warren [Buffett] trusted us.

Just in terms of allocation of time resources, religion is not very efficient. There's a lot more I could be doing on a Sunday morning.

So we can simulate Richter-10 earthquakes. We simulate 70-foot waves coming into these things. Very cool. We basically say no human should ever be required to do anything, because if you judge by Chernobyl and Fukushima, the human element is not on your side.