Of course it wouldn't be a permanent solution, but allowing the hole to exist only makes it bigger in the short term. Anyway, the Sweetwater Dam article led me

Of course it wouldn't be a permanent solution, but allowing the hole to exist only makes it bigger in the short term. Anyway, the Sweetwater Dam article led me to an entertaining read about Charles Hatfield, the professional rainmaker: https://en.wikipedia.org/wiki/Charles_Hatfield https://en.wikipedia.org/wiki/Charles_Hatfield Now this guy was a great salesman. It leads you to wonder if his apparently high success ratio was a result of pure luck, if there's some truth to his "evaporative mix," or as suggested in the article, he had great meteorological prediction skills. If weather patterns are not independent one year to the next, then just the fact that only statistically significant drought-ridden cities call for his help probably suggests that all of these cities are "due" for rain regardless.