I like how WeatherWar101 shows the creation, or enlarging the volume, of excessive rainfall but I don't agree with the theories he has regarding the reason for the manipulation and the climate overall.
My best guess is that it is part of trying to sell us man made global warming. So they can point to all the flooding and say: see, just like we said, all a result of climate change. Plus an economical factor, minimizing the resources the average person has.