If you look around what's really happening in our world today, there's an inescapable pattern that curiously emerges: Much of what's going on is simply unsustainable. It can't go on for much longer, in other words. And it must collapse due to the laws of economics or physics. Here, I've put together a collection of twelve systems that are utterly unsustainable on our planet. Each of these twelve is scheduled for some sort of collapse or shut down in the coming years. They range from economics to medicine, population and the environment. And interestingly, the collapse of just one of these twelve would have devastating consequences across human civilization. What happens when two, three or ten of these things collapse?