I agree with the fact that things need to change, and I realise the importance of preventing further global warming, but that which I have just quoted is simply not relevant.I wonder how long we will last before we eventually bring our "host" down to the point of no return...
At the very most we will destroy the environment on the planet up until a point where we risk ruining ourselves and our ''species''. This is bad, but only for us. Regardless of how much we do to eradicate ourselves, we can't simply destroy the planet. The most we can do is cause the planet to fight us off, like a disease, but our planet will restore. It may take thousands of years, it may take a million, but this planet will not be destroyed because of us. This planet has been through a lot more than us in its lifetime, really. We will be destroyed because of our actions, not our planet.
Either way though, I don't think we can avert this, it's probably going to take a near-extinction to shape people the hell up. That's just how "we" work I guess.