The Federal Energy Regulatory Commission’s (FERC) environmental assessment for the Iroquois Gas Transmission System’s Enhancement by Compression Project -- which calls for four natural-gas compressor stations in New York -- fails to estimate the project's downstream or upstream greenhouse gas emissions, and falsely suggests that the project may fully substitute for other sources of fossil-fuel energy. We submitted comments calling on FERC to quantify and monetize greenhouse gas emissions, and rebutting the suggestion that the project will not increase total emissions.