Over the past few hundred years, our population has increased almost tenfold. in 1800, there was around 1 billion people on earth. now, just over 200 years later, we have 8 billion. this is the largest curve of growth among any large species, and it has not ended yet. we are expected to reach 10 billion by 2058, which is only 35 years away, and even then we arent expected to stop. if we keep going the way we are, the planet will not be able to sustain all of us, and our numbers will come at the cost of other species, as we take more and more space, we will end up weeding them out of their homes and, ultimately, killing them all off. how can we, as a species, keep going the way we are and not end up killing off all other species?