We think of organisms, bacteria and viruses that undermine our health as diseases and question why there are so many of them - why they weaken their host, eventually killing the environment upon which they depend for their existence.
Humans are no different. Like any other parasites, the growing number of our species and our industry are taxing the planet until it becomes ill and eventually dies. We have become the spreading cancer of the Earth. Is it too late to reverse the trend? Is the future all dark?