Geoengineering. Weather modification. It's been going on since at least the 70's. Lots of documentation. Weather derivatives should tell us a lot because if you can gamble on whether or not the weather crops are going to fail due to weather, then why wouldn't you manipulate the weather.
Also, the usa's own military wants to "own the weather" by 2030, if I am remembering correctly. Agenda 2030.