Toxic waste is a perfectly natural by-product of our industrial processes. (You could argue those are natural too). Similarly, introducing these wastes into the

Toxic waste is a perfectly natural by-product of our industrial processes. (You could argue those are natural too). Similarly, introducing these wastes into the air and ocean also leads to natural consequences. I think the issue is that people confuse "natural" with "able to sustain human life". The planet Mercury is perfectly natural, but humans can't live there. In the same vein, we can do lots of natural things and our environment will find a way to balance things out. Where I feel people are short-sighted is that eventually that ecological balancing act precludes the existence of human beings in this planet.