To satisfy the needs and desires of 8 billion people, we currently need 1.8 planet Earths. But because there is just one planet, we are overshooting its capacity by using more resources than Earth can regenerate and dumping more waste than it can assimilate. And because this has been going on for quite a few decades now, we also have to deal with the consequences – climate change, resource depletion, soil degradation, pollution, the sixth mass extinction, and ocean acidification. Even though the economists and politicians try to convince us that things are going to be fine, that we can grow forever and technology will overcome any barriers in a place with finite resources, this is a lie. And if we want to make living on Earth sustainable not just for our generation but for the posterity, we must talk about real solutions.