Hi dragonslayer, great post. I suggest anybody interested in this theme to google "wait but why the world's raddest man". It explains in great length and in a very entertaining way these problems through an interview with Elon Musk. Musk is not only very aware of these problems since his youth, but he also have the intellectual, leadership and deep pockets to save humanity by cleaning up the earth from fossil fuels and, in case this fails, to allow humans to colonise and terraforming planet Mars. I believe this is a must read for all those who are interested in the future of our species. Thanks again for a beautiful post!