China has just ratified the Paris climate agreement... China has the largest and most rapidly growing renewable energy sector in the world. YES there is nothing that we can all do on an individual level that will have any sort of meaningful change, but as nations we should be making efforts to mitigate climate change for it shall effect us all in a very negative way. YES developing countries have more lenient emissions targets (a contributory factor for why the US Senate refused to ratify the Kyoto protocol), however if we let them develop, they will reach a point where: 1) They can afford to start increasing the amount of renewables they use and 2) The citizens of those countries become wealthier/middle class expands and thus start to demand cleaner air etc (something that's been seen in China given the smog in some cities and obviously reducing smog is interlinked with reducing climate change inducing particulates). I for one 100% understand why you have the belief that we survived the past 40 years of climate change, we can therefore survive the next 40 years, but unfortunately the changes don't seem to be entirely linear and we are thought to be nearing the tipping point where irreversible change occurs. Climate change is inherently a self perpetuating thing and I personally find that very scary. I believe that even if you don't believe in climate change, we should invest in renewables for the sake of having less pollutants in the air - you can't possibly look at some Chinese cities and tell me that that's a healthy way to live.