The Sabin Center translates legal research into real-world impact by engaging directly with courts, agencies, and policymakers through legal briefs, comment letters, and expert testimony. Our work spans jurisdictions, with dozens of high-impact submissions each year shaping climate decisions and strengthening governance.
This page contains downloadable copies of all of the Sabin Center’s comment letters, legal briefs, and testimonies.
Legal Briefs
Legal Briefs
- Amicus Brief on behalf of the U.S. Conference of Mayors in Support of Plaintiffs in Woonasquatucket River Watershed Council v. USDA, et al. (1st Cir.), by Vincent Nolette and Amy Turner (October 2025)
- Amicus Brief on behalf of the U.S. Conference of Mayors in Support of Plaintiff States in New York v. Trump (1st Cir.), by Vincent Nolette and Amy Turner (July 2025)
- Amicus Brief on behalf of the National League of Cities and the U.S. Conference of Mayors in Support of EPA in Nebraska v. EPA, by Michael Burger, Amy Turner, and Vincent Nolette (January 2025) The Sabin Center filed an amicus brief on behalf of the National League of Cities and the U.S. Conference of Mayors in support of the U.S. Environmental Protection Agency (EPA) in Nebraska v. EPA, a lawsuit challenging the EPA’s 2024 Heavy-Duty Vehicle Emissions Standards.
Amicus Brief submitted by the Sabin Center for Climate Change Law in Support of New York City in Glen Oaks Village Owners, et al. v. City of New York, et al., by Amy Turner, Michael Burger, and Vincent Nolette (December 2024)
The Sabin Center filed an Amicus Brief in support of New York City in Glen Oaks Village Owners, et al. v. City of New York, et al., before the New York State Court of Appeals. The court must answer whether New York City’s New York City’s building performance standards aimed at reducing greenhouse gas (GHG) emissions from the City’s largest buildings, is preempted by New York State’s Climate Leadership and Community Protection Act (CLCPA).
Amicus Brief on behalf of the National League of Cities and the U.S. Conference of Mayors in Support of EPA in Kentucky v. EPA, by Michael Burger, Amy Turner, Olivia Guarna, and Vincent Nolette (December 2024)
The Sabin Center filed an amicus brief on behalf of the National League of Cities and the U.S. Conference of Mayors in support of the U.S. Environmental Protection Agency (EPA) in Kentucky v. EPA, the lawsuit challenging the EPA’s 2024 Light- and Medium-Duty Vehicle Emissions Standards.
Amicus Brief on behalf of the National League of Cities and the U.S. Conference of Mayors in Support of EPA in West Virginia v. EPA, by Michael Burger, Amy Turner, and Vincent Nolette (October 2024)
The Sabin Center filed an amicus brief on behalf of the National League of Cities and the U.S. Conference of Mayors in support of the U.S. Environmental Protection Agency (EPA) in West Virginia v. EPA, the lawsuit challenging the EPA’s 2024 Power Plant Rules. The brief highlights the climate impacts that cities already experience, and local governments' efforts to mitigate and adapt to climate change.
Amicus Brief of Carbon Capture and Storage Scientists and Engineers in Support of EPA in West Virginia v. EPA, by Michael Burger and Romany Webb, with contributions from Olivia Guarna (October 2024)
The Sabin Center filed an amicus brief on behalf of Carbon Capture and Storage scientists and engineers in support of Respondent EPA in West Virginia v. EPA, which is a challenge to EPA's recent rules on greenhouse gas emissions from fossil fuel power plants.
Amicus Brief submitted by the Sabin Center for Climate Change Law in Support of New York City's Motion for Leave to Appeal to the New York State Court of Appeals in Local Law 97 case, by Amy Turner, Michael Burger, and Vincent Nolette (June 2024)
The Sabin Center filed an Amicus Brief in support of New York City's Motion for Leave to Appeal to the New York State Court of Appeals in the case involving a challenge to New York City's Local Law 97.
Amicus Brief submitted by the Sabin Center for Climate Change Law in support of plaintiffs in the Willow Project Case, by Michael Burger & Jessica Wentz (January 2024)
In November, the U.S. District Court of Alaska dismissed 2 lawsuits seeking to halt the Willow oil and gas project. Now, the case will be heard by the Ninth Circuit on appeal, and the Sabin Center has filed an amicus brief in support of the Plaintiffs-Appellants. The brief identifies several specific legal deficiencies in BLM’s analysis of climate change-related considerations for the Willow Project.
The Sabin Center filed an amicus brief on behalf of the National League of Cities, the League of California Cities & California State Association of Counties In Support of the City of Berkeley's Petition for Rehearing En Banc before the Ninth Circuit in California Restaurant Ass'n v. City of Berkeley.
Comments from the Sabin Center's Peer Review Network on Global Climate Change Litigation to the 'Study on the Impact of Climate Change on Human and Peoples' Rights in Africa' submitted to the African Commission on Human and Peoples' Rights (November 2023) by Maria Antonia Tigre et al.
Amicus Brief submitted by the Sabin Center for Climate Change Law on Climate Science and Human Rights Obligations to the Inter-American Court of Human Rights on the Request for an Advisory Opinion on the Climate Emergency and Human Rights from the Republic of Colombia and the Republic of Chile (November 2023) by Jessica Wentz, Michael Burger, Maria Antonia Tigre and Michael Gerrard
Amicus Brief of the Sabin Center for Climate Change Law in Sovereign Iñupiat for a Living Arctic v. Bureau of Land Management, by Michael Burger, Jessica Wentz, and Romany Webb (July 2023)
The Sabin Center filed an amicus brief in support of plaintiffs in litigation regarding the Willow Project on the North Slope of Alaska
Amicus Brief National League of Cities, League of California Cities & California State Association of Counties In Support of Defendant-Appellee City of Berkeley's Petition for Rehearing En Banc in California Restaurant Ass'n v. City of Berkeley, by Michael Burger and Amy Turner (June 2023)
Amicus Brief of the National League of Cities and U.S. Conference of Mayors in Texas v. EPA by Michael Burger, Martin Lockman, Andrea Nishi, and Amy Turner (March 2023).
The Sabin Center filed an amicus brief on behalf of the National League of Cities and U.S. Conference of Mayors in support of EPA's revised light-duty vehicle emissions standards.
Third-party intervention in the case of Verein KlimaSeniorinnen and others v Switzerland (Application no. 53600/20) (December 5, 2023) by Michael Burger and Maria Antonia Tigre
Local Government Amicus Brief in California Restaurant Association v. City of Berkley by Michael Burger, Jennifer Danis and Amy Turner (February 2022)
Local Government Amicus Brief in West Virginia v. EPA by Michael Burger (January 2022)
The Sabin Center filed an amicus brief on behalf of the National League of Cities and the U.S. Conference of Mayors in West Virginia v. EPA, a case that is currently before the United States Supreme Court. The case concerns the scope of the United States Environmental Protection Agency’s (EPA) authority to regulate greenhouse gas emissions from existing fossil fuel power plants under Section 111(d) of the Clean Air Act (CAA). The brief argues that significant federal regulation of power plants’ emissions is necessary to support and supplement local climate action, that Section 111(d) does not foreclose generation-shifting regulation, and that neither the major questions doctrine nor the federalism clear statement canon are implicated by the case.
Local Government Amicus Brief in Competitive Enterprise Institute v. NHTSA by Michael Burger and Hillary Aidun and related press release (January 2021)
The Sabin Center filed an amicus brief on behalf of local governments in support of state, city, environmental, and public health petitioners to challenge the Trump Administration's rollback of clean car standards. The brief illustrates the threats that motor vehicle emissions pose to cities, and that the federal weakening of motor vehicle standards undermines local government efforts to address climate change and transportation pollution. The brief was joined by the National League of Cities, U.S. Conference of Mayors, and 15 individual cities, towns, counties, and mayors.
Local Government Amicus Brief in Union of Concerned Scientists v. NHTSA by Michael Burger and Hillary Aidun (July 2020)
The Sabin Center filed an amicus brief on behalf of local government associations in support of state, city, environmental, and industry petitioners in the lawsuit challenging the Trump Administration's withdrawal of California’s authority to implement its existing greenhouse gas and zero-emission vehicle standards. The brief illustrates the threats that motor vehicle emissions pose to cities, including climate impacts and public health harms associated with smog and particulate matter. The brief also emphasizes that the EPA failed to consider the need to address climate change and vehicle pollution, and unlawfully disregarded the environmental justice impacts of its action. The brief was filed on behalf of the National League of Cities, the U.S. Conference of Mayors, and the International Municipal Lawyers Association.
Local Government Amicus Brief in American Lung Association v. EPA by Michael Burger and Hillary Aidun and related press release (April 2020)
The Sabin Center filed an amicus brief on behalf of local governments in support of state and environmental petitioners in American Lung Association v. EPA, the lawsuit challenging the Environmental Protection Agency's repeal of the Clean Power Plan and its replacement, the Affordable Clean Energy Rule. The brief highlights the climate impacts that cities are already facing, and local governments' efforts to mitigate and adapt to climate change. The coalition members include the U.S. Conference of Mayors, the National League of Cities, and 23 cities, towns, counties and mayors representing over 12 million residents.
Comment Letters and Testimonies
Submissions in Agency Rulemaking
- Comments on EPA's Proposed Rule to Reconsider the Endangerment Finding and Vehicle GHG Standards, Submitted with U.S. Conference of Mayors, National League of Cities, Climate Mayors and C40 Cities (submitted September 22, 2025)
- Comments on Proposed Rule – Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards (EPA-HQ-OAR-2025-0194; FRL-12715-01–-OAR) (submitted September 19, 2025)
- Template Letter on EPA's Proposed Endangerment Finding Rollback for Local Government Use (shared August 28, 2025)
- Comments on EPA's Proposed Rule to Repeal GHG Performance Standards for Power Plants, Submitted with Climate Mayors and C40 Cities (submitted August 7, 2025)
- Comments on EPA's Proposed Rule to Repeal GHG Performance Standards for Power Plants Based on CCS System (submitted August 7, 2025)
- Comments on EPA's Proposed Rule to Repeal GHG Performance Standards for Power Plants (submitted August 6, 2025)
- Comments on EPA’s Proposed MPRSA Research Permit for the Carboniferous, Inc. Biomass Sinking Research Project (submitted July 11, 2025)
- Comments on New York Department of Environmental Conservation's Proposed Amendments to SEQRA Regulations pursuant to Environmental Justice Siting Law by INCITE Network (submitted May 7, 2025)
- Comments on EPA's Memorandum of Application Update for the Woods Hole LOC-NESS Ocean Alkalinity Enhancement Project (submitted February 13, 2025)
- Comments on the Proceeding on Motion of the [New York State] Commission Concerning Electric Utility Climate Vulnerability Studies and Plans (submitted on August 30, 2024)
- Comments on New York Power Authority's 2024 Conferral Process (submitted August 13, 2024)
- Comments on Michigan Public Service Commission's Draft Application Instructions and Procedures for Renewable Energy and Energy Storage Facility Siting (submitted July 15, 2024)
- Comments on the Public Utilities Commission of the State of California's request for response on Order Instituting Rulemaking to Update Rules for the Safety, Reliability, and Resiliency of Electrical Distribution Systems (July 8, 2024)
- Comments on EPA's Notice of Permit Application for the Woods Hole LOC-NESS Ocean Alkalinity Enhancement Project (submitted July 3, 2024)
- Comments on the National Science Foundation's Request for Information on Development of a Marine Carbon Dioxide Removal Research Plan (submitted April 18, 2024)
- Comments on DOE's Notice of Proposed Rulemaking on National Environmental Policy Act Implementing Procedures Regarding Categorical Exclusions (submitted December 28, 2023)
- Comments on CEQ's Notice of Proposed Rulemaking on National Environmental Policy Act Implementing Regulations Revisions Phase 2 (submitted September 28, 2023)
- Comments on BOEM's Notice of Proposed Rulemaking on Risk Management and Financial Assurance for OCS Lease and Grant Obligations (submitted August 28, 2023)
- Comments on BLM's Notice of Proposed Rulemaking on Conservation and Landscape Health (submitted June 26, 2023)
- Comments on CEQ's Interim Guidance on Consideration of Greenhouse Gas Emissions and Climate Change in NEPA agency reviews (submitted April 10, 2023)
- Comments on FERC's Notice of Proposed Rulemaking on Applications for Permits to Site Interstate Electric Transmission Facilities (submitted April 4, 2023)
- Comments on New York State - Department of Financial Services' Proposed Guidance for New York State Regulated Banking and Mortgage Institutions Relating to Management of Material Financial Risks from Climate Change (submitted March 20, 2023)
- Joint Comment Letter with the Environmental Defense Fund on the FAR Council's Proposed Rule on the Disclosure of GHG Emissions and Climate-Related Financial Risk (submitted February 13, 2023)
- Comments on the FAR Council's Proposed Rule on the Disclosure of GHG emissions and Climate-Related Financial Risk (submitted February 1, 2023)
- Comments on the draft Fifth National Climate Assessment (submitted January 27, 2023)
- Joint Comment Letter with CCSI on the EPA's Request for Information on Low Emissions Electricity Program & GHG Corporate Reporting (submitted January 18, 2023)
- Joint Letter to the New York State Department of Taxation and Finance's Acting Commissioner Amanda Hiller encouraging publication of the Solar and Wind Appraisal Model through the State Administrative Procedure Act process (submitted December 6, 2022)
- Comments on the Commodity Futures Trading Commission’s Request for Information on Climate-Related Financial Risk (submitted October 7, 2022)
- Comments on FERC's Notice of Proposed Rulemaking on One-Time Informational Reports on Extreme Weather Vulnerability Assessments Climate Change, Extreme Weather, and Electric System Reliability (submitted August 30, 2022)
- Comments on SEC's Proposed Rule on The Enhancement and Standardization of Climate-Related Disclosures for Investors (submitted June 17, 2022)
- Comments on FERC's Draft Policy Statement of Certification of New Interstate Natural Gas Facilities and Draft Policy Statement on Consideration of Greenhouse Gas Emissions in Natural Gas Infrastructure Project Reviews (submitted April 25, 2022)
- Comments of Sabin Center, EDF, and NJCF to NJBPU Gas Capacity Proceeding (submitted February 8, 2022)
- Comments on the Occupational Safety and Health Administration’s Advance Notice of Proposed Rulemaking on Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings (submitted December 14, 2021)
- Comments on the Michigan Public Service Commission's request for comments on improving utilities' preparedness for climate change impacts (submitted September 24, 2021)
- Comments on the White House Office of Science and Technology Policy's Request for Information to Improve Scientific Integrity Policies (submitted July 28. 2021)
- Comments on EPA's Proposal to Rescind the Safer Affordable Fuel Efficient Vehicles Rule Part One (submitted July 6, 2021)
- Comments on Petition to New York PSC to Comprehensively Study the Impacts of Climate Change on Utility Infrastructure (submitted June 28, 2021)
- Comments on petitions for review of orders of the FERC (submitted June 22, 2021)
- Comments in response to SEC's request for information on climate change disclosures (submitted June 11, 2021)
- Comments on NHTSA's Proposed Repeal of the Safer Affordable Fuel-Efficient Vehicles Rule Part One (submitted June 11, 2021)
- Supplemental Comments on FERC's Notice of Inquiry on its Certification of New Interstate Natural Gas Facilities (submitted May 26, 2021)
- Comments on the New York Public Service Commission's proposal to require climate-related risk disclosures by utilities (submitted Dec. 9, 2020)
- Comments on Proposed Regulations of the New York State Office of Renewable Energy Siting (submitted December 2, 2020)
- Attachment: New York State Decarbonization Pathways Analysis
- Comments on DOE's Proposed Revisions to its NEPA Regulations (submitted June 1, 2020)
- Comments on EPA's Proposed Strengthening Transparency in Regulatory Science Rule (submitted May 18, 2020)
- Comments on Proposed NEPA Regulations (submitted March 10, 2020)
- Comments on EPA's Proposed Revisions to the Oil and Gas New Source Performance Standards (submitted November 22, 2019)
- Comments on EPA’s Proposed Revisions to the Power Sector New Source Performance Standards (submitted March 18, 2019)
- Comments on EPA’s Proposed Revisions to the Oil and Gas New Source Performance Standards (submitted November 30, 2018)
- Comments on FERC’s Section 206 Inquiry on PJM Interconnection’s Open Access Transmission Tariff (submitted October 1, 2018)
- Comments on Proposed Amendments to Endangered Species Act (ESA) Regulations (submitted September 24, 2018)
- Comments on FERC’s Notice of Inquiry on its Certification of New Interstate Natural Gas Facilities (submitted June 18, 2018)
- Comments on EPA’s Proposed Repeal of the Clean Power Plan (submitted April 18, 2018)
- Comments on FERC’s Review of Grid Resilience in Regional Transmission Organizations and Independent System Operators (submitted April 13, 2018)
- Comments on BLM’s Proposed Revisions to the Waste Prevention, Production Subject to Royalties, and Resource Conservation Rule (submitted March 26, 2018)
- Comments on EPA’s Notice of Data Availability Issued in Support of its Proposed Two Year Stay of the Oil and Gas New Source Performance Standards (submitted December 7, 2017)
- Comments on BLM’s Proposed Suspension of the Methane Waste Rule (submitted November 6, 2017)
- Comments on DOE’s “Grid Resiliency Pricing Rule” (submitted October 18, 2017)
- Comments on EPA’s Proposed Two Year Stay of the Oil and Gas New Source Performance Standards (submitted August 8, 2017)
- Comments on DOI’s Request for Input on Regulations to Repeal, Replace, or Modify Pursuant to Executive Order 13777 (submitted July 26, 2017)
- Comments on Proposed Amendments to Part 617 Regulations under the New York State Environmental Quality Review Act (submitted May 17, 2017)
- Comments on EPA’s Request for Input on Regulations to Repeal, Replace, or Modify Pursuant to Executive Order 13777 (submitted May 10, 2017)
- Comments on Proposed Sea Level Rise Projections for New York City, 6 NYCRR Part 490 (submitted December 19, 2016)
- Comments on the Federal Highway Administration’s Plan to Develop a Greenhouse Gas Performance Metric for National Highway Assessments (submitted August 18, 2016)
- Comments on the Federal Energy Regulatory Commission (FERC)’s Draft Guidance Manual for Environmental Report Preparation for Applications Filed Under the Natural Gas Act (submitted February 23, 2016)
- Comments on the Council on Environmental Quality (CEQ)’s Revised Draft Guidance on the Consideration of Greenhouse Gas Emissions and the Effects of Climate Change in NEPA Reviews (submitted March 24, 2015)
- Comments on the Revised Proposed 6 NYCRR Part 570 – Regulation of Liquefied Natural Gas Facilities (submitted November 12, 2014)
- Comments on the New York State Department of Public Service’s Long Island Utility 2.0 Plan (submitted November 11, 2014)
- Testimony of Romany Webb before the Senate of Canada Standing Committee on Fisheries and Oceans Hearing on Ocean Carbon Sequestration and its Use in Canada, December 5, 2024
- Third-party intervention in the case of Verein KlimaSeniorinnen and others v Switzerland at the European Court of Human Rights, December 5, 2022
- Written Testimony of Amy Turner before the New York City Department of Buildings, November 14, 2022
- Written Testimony of Amy Turner before New York City Council Committee on Environmental Protection Hearing on Building Electrification and Intro. 2317, November 17, 2021
- Written Testimony of Romany Webb before the Massachusetts Senate Committee on Global Warming and Climate Change: Hearing on Climate Resilience of Transportation and Electric Infrastructure, October 4, 2021
- Michael Gerrard's Testimony to Congress about Siting Renewable Energy on Public Lands, May 2019
- Written Statement of Michael H. Burger, Executive Director, on Climate Change and Human Rights, UPR Civil Society Consultation (February, 2015)
- Advance Written Statement of Michael H. Burger, Executive Director, on Climate Change and Human Rights, UPR Town Hall & Civil Society Consultation (July, 2015)