At the new raw edge of climate change, scientists Peter Brewer (Monterey Bay Aquarium Institute) and John Shepherd (University of Southampton) give us a peek into the upcoming Royal Society conference on oxygen depletion in the oceans, as they warm. Seasoned space specialist James Kasting (Penn State) explains a possible end, with scalding seas and heat-tolerant bacteria as the only survivors. Produced by Alex Smith for Radio Ecoshock.