Water

I read somewhere that fresh water will be as valuable in the 21st century as oil was in the 20th.  And the nation with the most fresh water is Canada!  I wonder if the U.S.A. will take us over for our water?  Here's a prediction:  if the U.S. ever acquires Canada, we'll stay much the same, but they'll be transformed!

I remember another cartoon (Aqua Duck) where Daffy Duck was wandering through the desert with a big nugget of gold, but couldn't find water!  There were some funny bits where he started hallucinating and saying things like "Belly up to the bar, boys!" There was also Wet Hare, in which Bugs Bunny found his river being dammed off by a French-Canadian desperado called Blaque Jacques Shellac. (They never explained what he wanted to do with all that water.)

Kevin Costner made this movie Waterworld where the ice caps have melted and most of the earth is underwater, and he plays a character who's so evolved that he can breathe through gills when he's underwater.  Anyway, there's this attention-grabbing scene at the start where he filters his own urine to obtain drinking water.  Two questions!  Why hasn't he developed a tolerance for salt water, a much shorter evolutionary leap than sprouting gills?  And why doesn't he just filter sea water?