"I think maybe the critical issue here is the governance aspect which I think is one of the core sources of many of the greatest threats to human civilization on the planet. The difficulties we have in effectively tackling these global governance challenges. So global warming, I think, at its core is really a problem of the global commons. So we all share the same atmosphere and the same global climate, ultimately. And we have a certain reservoir, the environment can absorb a certain amount of carbon dioxide without damage, but if we put out too much, then we together face a negative consequence."

Nick Bostrom is a Swedish-born philosopher with a background in theoretical physics, computational neuroscience, logic, and artificial intelligence, as well as philosophy. He is the most-cited professional philosopher in the world under the age of ...