D. Alexander Methane Science Accord, Clevedon, New Zealand J. D. Ferguson University of Pennsylvania School of Veterinary Medicine, USA A. Glatzle Asociaci´on Rural del Paraguay, Asunci´on W. Happer Department of Physics, Princeton University, USA W. A. van Wijngaarden Department of Physics and Astronomy, York University, Canada January 27, 2026 Abstract Methane emissions by livestock have… Continue Reading

William Happer Professor of Physics, Emeritus, Princeton University November 3, 2025 U.S. Environmental Protection Agency Docket ID No. EPA-HQ-OAR-2025-0186 1200 Pennsylvania Avenue NE Washington, D.C. Re: Reconsideration of the Greenhouse Gas Reporting Program (GHGRP) (“Proposed Rule”) Dear Administrator Zeldin, Thank you for the opportunity to comment on the Environmental Protection Agency’s (“EPA”) Proposed Rule.[1] The… Continue Reading