Weather modification

The Rainbowmaker is a 2008 Georgian film directed by Nana Jorjadze.

The Noah's Ark Principle (German: Das Arche Noah Prinzip) is a 1984 West German science fiction film written and directed by Roland Emmerich as his thesis at the Hochschule für Fernsehen und Film München (HFF).

Vincent Joseph Schaefer (July 4, 1906 – July 25, 1993) was an American chemist and meteorologist who developed cloud seeding. On November 13, 1946, while a researcher at the General Electric Research Laboratory, Schaefer modified clouds in the Berkshire Mountains by seeding them with dry ice. While he was self-taught and never completed high school, he was issued 14 patents.

Weather modification is the act of intentionally manipulating or altering the weather. The most common form of weather modification is cloud seeding, which increases rainfall or snowfall, usually for the purpose of increasing the local water supply. Weather modification can also have the goal of preventing damaging weather, such as hail or hurricanes, from occurring; or of provoking damaging weather against an enemy, as a tactic of military or economic warfare like Operation Popeye, where clouds were seeded to prolong the monsoon in Vietnam. Weather modification in warfare has been banned by the United Nations under the Environmental Modification Convention.

Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation, mitigate hail or disperse fog. The usual objective is to increase rain or snow, either for its own sake or to prevent precipitation from occurring in days afterward.

Ram Narain Arya (1936–2010) was a Vedic Rainmaker.

Charles Mallory Hatfield (July 15, 1875 – January 12, 1958) was an American "rainmaker."

Silver iodide is an inorganic compound with the formula AgI. The compound is a bright yellow solid, but samples almost always contain impurities of metallic silver that give a grey colouration. The silver contamination arises because some samples of AgI can be highly photosensitive. This property is exploited in silver-based photography. Silver iodide is also used as an antiseptic and in cloud seeding.

United Nations General Assembly Resolution 31/72 referred the Environmental Modification Convention (ENMOD) “to all States for their consideration, signature, and ratification”. The resolution was adopted on 10 December 1976 at the 31st Session of the UN General Assembly. The convention aims to prohibit the military or other hostile use of environmental modification techniques that have widespread, long-lasting, or severe effects. The convention entered into force on 5 October 1978.

The Thailand Royal Rainmaking Project (Thai: โครงการฝนหลวง, khrongkan fon luang) was initiated in November 1955 by King Bhumibol Adulyadej. Thai farmers repeatedly suffered the effects of drought. The king resolved to do something about it and proposed a solution to the dearth of rain: artificial rainmaking, or cloud seeding. The program is run by the Department of Royal Rainmaking and Agricultural Aviation. There is no impact evaluation or effectiveness reported.