Just dropping lots of Ammonium nitrate and Barium hydroxide all over you to make it rain more, lets call it Cloud Seeding via ice crystals sounds way better than chemtrailing

http://philsreport.blogspot.co.uk/2014/02/ammonium-nitrate-and-barium-hydroxide.html

Cloud seeding flight approved for day before fatal Tasmania flooding

Tasmania’s government-owned energy company has been asked to explain why it conducted cloud seeding over the Australian island shortly before heavy rains which caused catastrophic flooding.

 

Cloud seeding is a process which involves dropping ice crystals into clouds to cause rain and is used as a technique to maintain water levels in dams.
Despite heavy rain being forecast, Premier of Tasmania Will Hodgman said Hydro Tasmania gave the seeding go-ahead on Sunday morning.

https://www.rt.com/news/346127-tasmania-flooding-cloud-seeding/