Cloud Seeding

November 13, 2013, 12pm PST
For those of you who thought "cloud seeding" was science fiction, California has actually been refining the practice for more than six decades. As the state experiences its driest year on record, utilities are preparing their seeding systems.
The Sacramento Bee
December 9, 2009, 11am PST
Citing street sweeping costs, Moscow's mayor has said the city may start seeding the clouds to reduce snowfall.
Los Angeles Times
October 4, 2009, 5am PDT
To celebrate the Republic of China's 60th anniversary, a huge party was planned. A huge effort was also undertaken to scientifically make sure no bad weather would spoil the event.
The New York Times