It is so humid and hot outside that I am convinced that Global Warming is firmly anchored upon our blue planet. My unofficial litmus test was the fact that my eyeglasses steamed up as I exited my air conditioned apartment to walk to my favorite neighborhood restaurant. It is during this short walk that my mind begins conjuring up a future scenario: I'm about 8o years old, sitting on my front porch - and not the crappy front porch of the apartment building I'm living in now, though the thought …