Hey, Chicagoans, how would you like to live in the Miami of the Midwest? All you gotta do is stay put! Climate-wise, in 50 years, maybe less, Chicago could be what Miami is now -- minus the proximity to Havana, of course, and minus the fact a good part of South Florida might be under water. Forget January snowball fights in Grant Park. How about spring-break water skiing on Lake Michigan? How about Christmas margaritas outdoors? By now, you've heard of global warming. I'm guessing the only people who don't think the condition is real and largely man-created are right-wing...