Yeah when it comes to humans doing harm to the earth I'm of two minds that directly oppose each other.

First: No human should suffer and everyone has the right to live a healthy life and raise a family if they so choose.

Second: Our population is over 7.5 Billion. Even if we were all conscientous of the environment, our numbers alone would still continue to wreak havoc on the environment and the wilderness. Earth would be healthier for having some major cataclysms that wipes out 99% of the human population.