I'm surprised there is still a debate after China and the Olympics. China very clearly stated that they were going to manipulate the weather in order to stop it from raining on the Olympics, which they did by cloud seeding and cutting the clouds before reaching Bejing. Now they have plans to cloud seed in hopes of clearing smog. The United States cloud seeds regularly especially over Northern California and Colorado. As a farmer with a new toy of a GPS driven tractor I am able to watch the skies a lot more, I'm able to watch planes fly by and leave jet streams that are supposed to dissipate. I'm able to watch those jet streams expand and turn into clouds that join the weather system and go to the east over the mountains, here we have a drought, East they're getting snow dumped on them. "Climate Change"
Nobody has ever denied cloud seeding exists. So what's your point?