Humanity cannot and will not change its practices fast enough to avoid running out of resources we keep ourselves dependent on because it's "profitable." We are a doomed species and won't be around for very much longer. We are likely living in the flash of bright before the long dark. I don't think the world my grandchildren live in will be remotely like the one we have now.
I'm perfectly fine hedging my bets and living life normally, but I think our longevity is an uncomfortable truth most people don't want to face.