I don't want to say much more than that. If you've read the story, you know what happens, and if you haven't, you probably want to track it down without having the plot spoiled for you.
Of course, today we know that the Venusian clouds have nothing to do with water and everything to do with the Greenhouse Effect. And given the accelerated rate of global warming on Earth, I sometimes wonder if the extreme weather patterns we've been experiencing are a prelude to something worse.