Multilateral parametric climate risk insurance: a tool to facilitate agreement about deployment of solar geoengineering? Zero Geoengineering Posted on April 30, 2019 by Jolie DianeApril 30, 2019 8 April 2019 | Joshua B. Hortona and David W. Keithb| Solar geoengineering1 is a controversial technology and states will disagree about its deployment. Link To Full horton_and_keith_climate_policy_2019 Share this:FacebookTwitterTumblrRedditEmail Related