We are using up natural resources in an inefficient manner.
We are destroying natural habitats.
Part of what allows the planet to fluctuate in temperature and carbon dioxide is having plants and other useful organisms that participate in the carbon cycle and what not.
Those highs and lows did not take place in our time on the planet in the last two thousand years.
If people believe that you can proceed without caution and the planet will take care of itself be careful for what you wish for. It wouldn't take much of a temperature increase pr drop to starve us out....... never mind that the food might be too polluted to eat.
Look you dont need a genius to tell you that what we are doing to the planet is going to have to be paid for at some point. Maybe it turns out to not be global warming. But at some point we are going to be fucked. Does it make you feel any better to know that what kills us is something other than global warming? Either way you are dead and it is directly a result of industry and human activity.
I can get on board with you to some degree. But I think the problem you are pointing to is overpopulation combined with wasteful consumption.
So long as the population of the planet continues to rise we will continue to face potential food and water shortages/contamination.
However there are only 2 solutions to that problem:
1) Control population growth. I would predict a 0% chance of that happening!
2) Find other planets capable of sustaining human life and colonize them. Theoretically, this should be possible. It's just a question of how long it will take. Obviously, we will have to figure out a way to survive in the meantime.
The challenge with solution 2) is that the only way forward is through development of, and use of, existing technology (including hydrocarbon combustion engines), not a return to agrarian society. That means conditions (and I'm not talking about global warming here, rather I'm referring to food/water shortages/contamination) will probably worsen before they get better.
I think that focussing on global warming/climate change is a distraction from solving the real problem - overpopulation.