I'll take us back off track again... way off track.

There are currently 6.6 billion people alive on this planet. This number will only continue to rise. We are the top of the food chain. We have no natural predators keeping our numbers in check. Our industry enables us to consume and pollute at an unprecedented rate.

The Earth took 4.5 billion years to evolve into its current balance, and we have begun changing that balance in a mere 100 years. As our numbers grow, so will our industry, and so in turn our consumption and pollution will grow as well. There is no question that the human species will destroy this planet unless we are able to recognize the inevitable future and do what is necessary to change our course.