I think it is a serious problem and after seeing several documentaries on the shortened winters in the Arctic the odd whale and hammer head shark migrations because of changing temperatures in the oceans currents it is something I think we all need to be concerned about. I don't think my home in Miami will ever be under water anytime soon, and I think we are taking steps to help reverse the damage we have done but the earth dies warm naturally too and we just happened to become industrial during a time when it is. So bad timing on our part. I do hope we are doing enough, fast enough.