Surprised they didn’t mention hail suppression, which definitely does happen. I would guess it’s not as visible as contrails.<p><a href="https://www.cbc.ca/news/canada/calgary/cloud-seeding-hail-severe-weather-calgary-silver-iodide-storm-damage-1.5664718" rel="nofollow">https://www.cbc.ca/news/canada/calgary/cloud-seeding-hail-se...</a>