Weather modification in North America has been taking place since as far back as the 1950s. Programs related to this field have been authorized by the governments of both the United States and Canada.

Alberta Hail Project

The Alberta Hail Project was a research project sponsored by the Alberta Research Council and Environment Canada to study hailstorm physics and dynamics in order to design and test means for suppressing hail. It ran from 1956 until 1985. The main instrument in this research was an S-band circularly polarized weather radar located at the Red Deer Industrial Airport in central

Alberta, Canada Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, t ...

Project Stormfury

Project Stormfury was an attempt to weaken tropical cyclones by flying aircraft into them and seeding with silver iodide. The project was run by the United States Government from 1962 to 1983.

In Southern California

Weather modification via

cloud seeding 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 ...

has a long history in perennially dry Southern California. Santa Barbara County has been cloud seeding with both ground-based machines and dedicated cloud-seeding airplanes since the 1980s. In 2016, Los Angeles County rebooted its cloud seeding program (with ground-based machines) for the first time after 2002.

Pumping up deep ocean waters to cool the surface

Pumping up colder deep ocean water in front of a

tropical storm A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its lo ...

to cool the sea surface skin temperature could be a technique used to fight hurricanes in the

Atlantic The Atlantic Ocean is the second largest of the world's five oceanic divisions, with an area of about . It covers approximately 17% of Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for se ...

before they develop into major hurricanes. It is purely speculative and difficult to realize since placing such pumps in the path of a hurricane would be difficult. Furthermore, any such project would need a large number of them to upwell enough water to cool a large enough sea surface area to have any effectiveness. That is without counting the ridiculous amount of energy needed to power those pumps and its effects on marine life.

References

External links