Representative Markwayne Mullin (R-OK) offered an amendment to H.R. 3354, the Department of the Interior, Environment, and Related Agencies Appropriations Act, 2018, which would prohibit funds for implementing the Obama administration’s Social Cost of Carbon Rule, a rule requiring analysis of the real economic impacts, positive or negative, of the carbon pollution of a project or proposed rule. The Social Cost of Carbon is a critical tool that helps the public and decision makers understand the true benefits and costs of a project and the possible ways to mitigate negative impacts. Weakening or eliminating funding for its use, which is what this amendment would do, ignores the costs of these emissions, putting critical infrastructure, taxpayer dollars, and local communities’ health at risk. On September 13, the House approved the Mullin amendment by a vote of 225-186 (House roll call vote 489). NO IS THE PRO-ENVIRONMENT VOTE. The House passed H.R. 3354 on September 14, but the Senate took no action on this legislation.