I am actually talking about replacing the earth, or at least, replacing the bits of the earth that we depend on for survival which stand to be the most disrupted by global warming. We can deal with bad weather. People don't die in hurricanes or in heavy snow falls or in stupidly hot and dry summers, not in anything like numbers that would be significant anyway, it's our crops and our water supplies that get strained and when those go south, you get bad shit happening. So yes, I am talking about replacing the earth, only I'm going to take this metaphor one step further and say we should replace the alcoholic's liver with a mechanical one, a liver that does the same job as a liver, only it does it better AND is immune to the effects of alcohol.