Legal Response to Environmental Concerns about Weather Modification Zero Geoengineering Posted on October 7, 2017 by Jolie DianeMay 8, 2021 August 1975 | Legal Response to Environmental Concerns about Weather Modification Legal response to environmental concerns about weather engineering was minimal until the late 1960’s when state laws began to tighten regulation of cloud seeding operations. Link to Full _Document Share this:FacebookTwitterTumblrRedditEmail Related