there are too many people on the planet and the continuous growth capitalist model the west has can only have one conclusion, that we use up all of the earths resources. :-(
unless we introduce birth controls, give up continuous growth model, colonise space or a combination of all 3 we're doomed, doomed I tell ya.
wars over resources may slow down the population growth a bit but surely the better way is birth control
as for global warming the earth goes though warmer and cooler period over timescales longer than politicians care about so how could climate change be addressed? regardless of whether you believe humans are severely impacting on it or not?
I kinda think elon musk and jeff bezios have some good ideas for humanity's future so my next car will be a tesla and my next on-line order will be with amazon :p