Meanwhile in the U.S.

https://www.tdlr.texas.gov/weather/weathermod.htm

https://www.tdlr.texas.gov/weather/summary.htm

http://www.nawmc.org/

http://www.texasweathermodification.com/history.htm

The first “hint” of the potential of human activity to alter the behavior of clouds came just after the Civil War, when civil engineer Edward Powers made the observation that rainstorms often occurred where major battles between Union and Confederate troops were waged. The immense smoke, dust, and other particulate matter put into the air during conflict seemed to invigorate clouds to rain more.

Weather Modification has been tried since 1891 in Texas, the first attempt by patent attorney Robert Dyrenforth, who was given a $2,000 grant by the U.S. Congress to do a series of rain making experiments near Midland. Severe droughts have driven the need for weather modification since it’s beginning, and the current attempt is no exception. Ground based generators have been used in several parts of the state over the years; then airplanes were tried, delivering dry ice, and then flares, and generators producing silver iodide particles.