The two primary reasons for civilian weather modification are the inducement of rain in drought-stricken regions to help crop growth and the suppression of hailstones, which can damage crops. The chemicals used include dry ice and silver iodide. The most common and practical means of chemical dispersion are via small aeroplanes that fly into the troposphere where clouds form.
Needless to say, the military have always been interested in weather modification. In the 1950s, the British Royal Air Force flooded the small twin towns of Lynton and Lynmouth when, as part of Operation Cumulus, they unleashed a deluge by dumping dry ice into clouds, killing 34 people. From the late-1960s to the 1970s, the US Defense Department used weather as a weapon in the Vietnam War (Project Popeye)...<<<Read More>>>..
