When you see the US greed, political terrorism, utilization of torture around the world (check what water boarding is) and repeated denial to take responsibility for its crimes and pollution contribution. Do you think it is a sign from God? While developing countries also have their blame none have the technology, resources and skilled personnel to employ a true change to protect the environment like the US. Perhaps this is merely a face slap from Mother Nature and in comparison to it, all the nuclear weapons of the US will appear futile.