I agree that the globe doesn't have the political will to enact harsh enough laws to really impact climate change. It has become too politicized at this point. I do disagree that civilization will die. When there is massive drought and food shortages, changes will happen then. At that point it will be very real. However, we have way to much scientific knowhow and money for our species to be wiped out. I'm not saying it won't be a very different experience and a different kind of life but we're too smart to die off. We may lose the ability to produce food at massive scale but not at small scale. I don't even think we'll get to this point in this century. But we likely will at some point. Maybe we'll do better the second time around with a more sustainable global population.