What are the greatest global threats to the future of humanity? An international team from Oxford University's Future of Humanity Institute is investigating the biggest dangers.
And they argue in a research paper, Existential Risk as a Global Priority, that international policymakers must pay serious attention to the reality of species-obliterating risks.
Last year there were more academic papers published on snowboarding than human extinction.
The Swedish-born director of the institute, Nick Bostrom, says the stakes couldn't be higher. If we get it wrong, this could be humanity's final century.