Raindrops from Smoke Zero Geoengineering Posted on December 3, 2016 by directorNovember 25, 2017 Popular Science November 1928 Weather Modification History Popular Science Magazine 1928Weather Modification History Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Tumblr (Opens in new window) Tumblr Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email Related