World-renowned scientists Tony Barnosky and Liz Hadly ask: what happens when vast population growth endangers the world's food supplies? Or our water? Our oil, space or environment? What happens if these all become critical at once? End Game explores the origins of disease in densely populated areas of West Africa, witnesses raging fires in Colorado and explains how drought-induced food shortages are already causing conflicts in the Sudan, Gaza Strip and Iraq. Finally, it asks: what combination of problems will hasten the sixth mass extinction? We still have the chance to avoid this tipping point and secure our future. But this unique opportunity will be gone within ten-to-twenty years. End Game is the call to action we need.