It's coming home to roost over the next 50 years or so. It's not just climate change; it's sheer space, places to grow food for this enormous horde. Either we limit our population growth or the natural world will do it for us, and the natural world is doing it for us right now.
We only know a tiny proportion about the complexity of the natural world. Wherever you look, there are still things we donβt know about and donβt understand. [...] There are always new things to find out if you go looking for them.