The worst thing that is likely to happen is we do what the Nomads did - move to where the rain falls, or what the Romans did - pipe water from where the rain falls to the cities - or some combination. It depends how much you really like that Multi-Billion Dollar investment you made in Toronto, Vancouver, Montreal, New York....
So we just go with it and react as consequences unfold? What about a responsibility to future generations? What about a responsibility to other nations? Climate change knows no borders. The remark about the ice age mania of the 70's and the ozone hole mania of the 80's is interesting. It is also interesting to note that ozone depletion continues unabated and that, sure, the world is not coming to an end, however, people are and will continue to experience increased risk of skin cancer etc. My question to nay-sayers is have you ever looked into the affiliations of the scientists that tend to minimize climate change and possible consequences? Have you also investigated those that do not appear to minimize climate change studies' prognostications? I am not a research scientist, I only have an undergrad. in meteorology to complement my degrees in business. However, if there is something that I have learned in academia and from reading scientific journals, and that is that some scientists will mould interpretations of data for whomever they are on the payroll for. Whenever I look at a new study or journal article, I check out who the author is and who they work for. We know what is in it for the Bush administration, but what would the agenda of scientists who do not minimize the possible effects of climate change be? I have seen friends go on to do research in oceanography/climatology and get hired by the Alberta provincial government. Once on the payroll, they switch to the other end of the climate change spectrum.