Why is it that we can't generate power from the tides and/or the major currents, like the Gulf Stream?
I am afraid it is a little bit too late for this. According to scientific reports and because of the global warming melting the artic ice, there is a serious chance to see the gulf stream shut down, which would be a catastrophe. But, I know, some people here thinks that global warming does not exists (the same who do not want to spare oil). Wishfull thinking I guess...