Environment Subcommittee Markup of H.R. 5519, H.R. 4656, and H.R. 3297 116th Congress Markup Climate Change March 4, 2020 Markup Of: H.R. 5519, the Atmospheric Climate Intervention Research Act H.R. 4656, the Background Ozone Research Act H.R. 3297, the Harmful Algal Bloom Essential Forecasting Act Opening Statements: Environment Subcommittee Ranking Member Roger Marshall Watch Live: Permalink: https://republicans-science.house.gov/2020/3/environment-subcommittee-markup-hr-5519-hr-4656-and-hr-3297-0