This was said by one agent smith from the first matrix movie. Well, somesort as I dont quite recall the exact words, nevertheless the meaning is there.

"Humans are like viruses, they go to a new place and they breed and use up all the resources in that area and then move to another place. They are as cancer is to humans, they are a plague, a disease to this planet"

Now how true is that? Look at wherever humans reside, the more we progress (multiply) the more we suck dry the earth that surrounds us. Just like how a virus enters a cell and uses its machinery and the resources given to that cell to manufacture more viral bodies to be released into the blood stream to repeat the process. And at the same time spreading out to find more human/other suitable animal body to infect.

Although there is one major difference, we as humans can reason. Whereas the viruses/bacteria/other parasites pathological or not, only know that they have to survive by the means that which they are capable of or hard-wired in their genetic make,  often which is limited. We however somehow only made to reason for us alone. Despite that we can think of better ways to be in harmony with the earth that surrounds us.

Yes for most parts, choosing to not hurt the planet may mean less comfort and facilities. Back when we were much more primitive, back when we knew little of comfort and wants instead of needs, we did less damage to earth I believe. 

No change is going to happen, even if it does. It would be by so little a number that the effect would be not significant. That is what has become of us. Just hope earth doesn't come up with an anti-human antibody. Like that show "the happening" which sucked for a movie, but the idea can really occur. Natural self defence. Just like how our bodies deal with organisms that which try to harm.

Some thoughts to ponder....