Digital Commons Network^™

Data Centers Face Volatile Regulatory Landscape, Michael B. Gerrard

Sabin Center for Climate Change Law

The construction of new data centers for artificial intelligence has become a major engine of the U.S. economy. More than 700 data centers are now under construction across 40 states, with many more to come.

These are typically multi-billion-dollar projects. This boom is facing growing public opposition, which has led to an extremely volatile regulatory land-scape, especially at the state and local levels. That landscape is the subject of this article. This volatility has raised the cost of capital for data centers and led to the cancellation of many, and to heightened due diligence by lenders and others.

The Impact Of New York's 2026 Climate Law Retreat, Jonathan A. Binder, Vincent M. Nolette

Sabin Center for Climate Change Law

On May 26, 2026, New York State enacted significant revisions to its 2019 Climate Leadership and Community Protection Act (CLCPA). The 2026 Amendments, which include changes to the greenhouse gas (GHG) emission accounting methodology, the statewide GHG emission limits, and the requirement to adopt implementing regulations, collectively weaken the Act's ambition. New York’s retreat from state climate action after championing it for years reflects a broader national trend of de-prioritizing mitigation efforts.

The 2026 Amendments will have vast and important consequences for the implementation of the CLCPA. Numerous actions will need to be updated through rulemaking, guidance, or other administrative …

Seqra Developments: Amendments To Ease Housing Construction, Revised Regulations, New Cases, Michael B. Gerrard

Faculty Scholarship

In the hopes of easing the housing shortage, on May 26 the New York Legislature passed and Governor Kathy Hochul signed a bill that will exempt many multifamily housing projects from the State Environmental Quality Review Act (SEQRA).

A month before, the New York State Department of Environmental Conservation (DEC) issued regulations on protecting disadvantaged communities, and took steps to require more discussion of climate impacts under SEQRA.

Five Urban Futures For A Hot Planet: U.S. Legal Scenarios, Michael B. Gerrard

Faculty Scholarship

If current climate change trends continue, flooding, extreme heat, wildfires, and water scarcity will make the homes of millions of people in the United States increasingly uninhabitable. This change could happen by the end of the century, perhaps sooner. Most people will want to stay in their current homes, but there is no coherent policy to fortify the most vulnerable places. Nor is the current legal system equipped to handle what may become one of the largest migrations in U.S. history, as people flee intolerable climate conditions. This Article envisions five scenarios for cities in the future: sprout, grow, stay, …

Bad Faith Disregard Of Benefits And Science In Federal Environmental Deregulation, Michael B. Gerrard

Faculty Scholarship

Since the beginning of the Reagan administration in 1981, federal agencies have used cost-benefit analysis when making important policy decisions, especially when issuing regulations. In the years since then the methodologies have been refined and enshrined in White House guidance. The second Trump administration has upended these practices by often ignoring the benefits of regulations and only considering the costs. In doing so it often claims that there are such uncertainties about the benefits that they should be disregarded. It uses these claims in support of repealing or softening regulations that prior administrations found would save thousands of human lives.

Discriminatory Effect(S), W. Kerrel Murray

Faculty Scholarship

In constitutional law, “discriminatory effect” often matters. So it’s surprising how often we don’t quite know what it means. That opacity is trans-substantive; it has been a recent pitfall in contexts as diverse as admissions-policy challenges under the Equal Protection Clause, personal-jurisdiction disputes under the “dormant” Commerce Clause, and, under the Free Exercise Clause, requests for exemptions from facially neutral laws.

This Article’s first corrective is a novel typology. Constitutional discriminatory effect is murky, in part, because it has many types; we perceive it in myriad ways across constitutional domains. Comprehending this complexity enhances our understanding of what discriminatory-effect rules …

The Disaster Management Complex: Law’S Adaptations In Times Of Climate Disaster, Michael Burger, Jeffrey Schlegelmilch, Lucia Bragg

Sabin Center for Climate Change Law

The Anthropocene is marked by constant climate-related disasters and defined by the urgent need to foster and implement adaptations to future climate impacts that reduce disaster risk. The intensity, frequency, and severity of extreme weather events continue to rise even as nations and corporations alike miss their emissions targets, all promising a hotter, wetter, and more extreme future. A number of federal agencies, including the Federal Emergency Management Agency (FEMA), have, at times, sought to adapt their own famously fragmented responses to these changing circumstances. However, federal disaster response is conducted against a backdrop of authorizing legislation that is designed …

A New View Of Formal Equality And A Case For Predistribution, Alex Raskolnikov

Faculty Scholarship

A long-held egalitarian view is that formal equality — the absence of formal legal distinctions based on the material resources of individuals — is regressive. If legal rules are the same for the rich and the poor, the rich benefit and the poor suffer. This Essay argues that this view is mistaken. Far from being synonymous with laissez-faire, a commitment to formal equality provides a counterweight to the key neoliberal maxim that regulation of the market economy should focus on efficiency alone. Moreover, a new view of formal equality offered here reveals a key advantage of predistribution over redistribution: Explicit …

Legal Models For Public-Private City Greening Partnerships, Daniel J. Metzger

Sabin Center for Climate Change Law

Cities are significantly hotter than their surrounding areas. That difference, known as the “urban heat island” effect, is driven in significant part by the dark-colored buildings, sidewalks, roadways, and similar surfaces that dominate urban spaces, absorbing solar energy and later radiating it outward as thermal energy that heats the nearby air. This Comment suggests and describes one avenue through which cities and local community-based organizations (CBOs) could tackle extreme heat: partnering with one another to transform paved surfaces into green or reflective ones. Partnerships of this kind could combine the resources and desire to create green spaces that nongovernmental groups …

Annual Review Of Seqra Cases And Developments, Michael B. Gerrard

Faculty Scholarship

The New York State Environmental Quality Review Act (SEQRA) turns 50 this year. The statute has changed only a little in the last half century, but it continues to be a font of litigation. The courts decided 43 cases under SEQRA in 2024.

Implementation of SEQRA is also raising policy issues. The legislature is considering whether to amend SEQRA to speed up affordable housing projects, and the State Department of Environmental Conservation (DEC) is drafting regulations concerning the role SEQRA should play in advancing environmental justice.

A constant theme is the tension between thoroughly studying important project impacts and involving …

Sabin Center For Climate Change Law Annual Report 2024-2025, Tiffany Challe

Sabin Center for Climate Change Law

This 2024-2025 annual report highlights the Sabin Center’s breadth and impact across our program areas, including climate litigation, carbon management and negative emissions technologies, US climate policy, energy transition, climate law and finance.

Decommissioning Offshore Oil And Gas Infrastructure: Report Of Proceedings, May 2, 2025 Offshore Decommissioning Workshop, Martin Lockman, Ashwin Murthy, Romany M. Webb

Sabin Center for Climate Change Law

On May 2, 2025, Ocean Conservancy and the Sabin Center for Climate Change Law organized a workshop at Columbia Law School on offshore oil and gas decommissioning in the United States. The overarching goal of the workshop was to bring together offshore law and policy experts to outline a research and policy agenda for offshore decommissioning. Within this broad goal, we sought to (1) identify key opportunities to reform offshore decommissioning law in the United States, both in the short term and over the next decade, (2) identify knowledge gaps and highlight areas for future research, and (3) begin to …

The Role Of Advisory Opinions In International Law In The Context Of The Climate Crisis, Maria Antonia Tigre, Armando Rocha

Sabin Center for Climate Change Law

Between December 2022 and March 2023, three requests for an advisory opinion were submitted to the International Tribunal for the Law of the Sea (ITLOS), the Inter-American Court of Human Rights (IACtHR), and the International Court of Justice (ICJ). Furthermore, a request for an advisory opinion from the African Court on Human and Peoples’ Rights (AfCtHPR) is being prepared. As such, 2024–2025 marks an unprecedented moment in global climate litigation: as of November 2024, we are on the verge of having four of the world’s most important international and regional courts and tribunals answering crucial legal questions on the (ex …

Wildfire Smoke And U.S. Law, Michael B. Gerrard

Faculty Scholarship

Many of the most wicked feedback effects of climate change relate to wildfire smoke. In some places the greenhouse gases poured into the atmosphere by wildfires exceed the reductions achieved by all efforts to fight climate change. At the same time, climate change is a major reason why wildfires are becoming more frequent and intense. Climate change and wildfires feed each other. However, environmental law and climate policy have paid relatively little attention to wildfires. The smoke from these fires — a major cause of illness and death, even thousands of miles from the blazes — is mostly unregulated. Efforts …

The Bugbear Of Indigenous Commercial Fishing Rights On The Eastern Frontiers Of Australia And The United States, Teresa Singh

LL.M. Essays & Theses

Restrictions on the commercial exercise of Indigenous fishing rights are plentiful across the U.S. and Australia. They have particular force and prevalence for Indigenous communities residing in the sites of the first colonies in both nations. This note exposes the common history underlying the diminished rights in these regions and argues the situation amounts to a critical environmental injustice. It follows that environmental justice advocates and scholars should embrace and advance the more encompassing iteration of Indigenous fishing rights urged by this note and support their restoration as a form of corrective justice for these communities.

Regulation Of Ocean Alkalinity Enhancement In Washington State, Ashwin Murthy, Korey Silverman-Roati, Romany M. Webb

Sabin Center for Climate Change Law

This paper focuses on one commonly-discussed ocean carbon dioxide removal approach, ocean alkalinity enhancement (“OAE”), which involves adding alkaline substances to ocean waters in order to increase their ability to uptake carbon dioxide from the atmosphere. OAE also has the potential to mitigate ocean acidification, which has been worsening globally due to climate change, and has threatened marine life and industries in places like Washington State.

There is significant interest in pursuing OAE off the coast of Washington state. This paper examines the legal framework for OAE projects in Washington State. As we explain, OAE projects conducted in near-shore areas …

Environmental Law In Trump’S Second Term, Michael B. Gerrard

Faculty Scholarship

Donald Trump’s victory in the Nov. 5, 2024 election and Republican control of both the Senate and the House (if that happens) will mean a reversal of much of the environmental progress under the Biden administration, just as the 2016 election reversed large parts of the Obama environmental legacy. However, rapid advances in the technology and economics of clean energy have created a momentum that can be slowed but not stopped. States can adopt their own stronger standards despite what happens in Washington, with a few exceptions, and can use their procurement power and their pension funds’ investment clout to …

Addressing Energy Insecurity Upstream: Electric Utility Ratemaking And Rate Design As Levers For Change, Emma Shumway, Diana HernáNdez, QëNdresa Krasniqi, Vivek Shastry, Abigail Austin, Michael B. Gerrard

Faculty Scholarship

Millions of Americans are impacted by energy insecurity each year, in part due to unaffordable and inequitable electricity rates. The electric ratemaking process presents opportunities to confront issues of affordability and equity or to instead entrench traditional approaches. State legislatures, public utility commissions (PUCs), and advocates all play vital roles in making the former a reality. Historically, ratemaking has been criticized as an insular and highly technical process that caters to utilities rather than customers. But states like California and New York are making strides by broadening PUC legal authority to include explicit consideration of equity issues, adjusting incentives and …

New York Falling Behind In Implementing Bold Climate Law, Michael B. Gerrard

Faculty Scholarship

In July 2019, shortly after Gov. Andrew Cuomo signed the Climate Leadership and Community Protection Act (CLCPA), I wrote in an op-ed, “The champagne corks are still popping. But the realization is dawning that implementing the new law will be really, really hard. New York is boldly going where no state has gone before … It will take a great deal of sweat and treasure (no one knows just how much), as well as a continuation of the political will that brought us to this point.”

We still do not know how much sweat and treasure will be required, but …

Permit Proposals: Summary Of Recommendations, Luis Pablo Alvarez

Sabin Center for Climate Change Law

All scenarios for meeting greenhouse gas reduction targets require faster deployment of renewable energy projects. However, the current permitting processes, while designed to ensure environmental and public safety as well as public participation, often delay progress. The challenge is to speed up renewable energy development without compromising environmental and community protections. This white paper by the Sabin Center reviews 15 reports from reputable institutions that identify steps to streamline the permitting process. These recommendations offer strategies to reduce time and costs in advancing renewable energy projects.

This report will be updated from time to time. Readers who identify errors in …

Global Guidance For Just Transition Policy, Anna Dell'amico, Martin Dietrich Brauch, Lara Wallis, Alexandra A.K. Meisea

Columbia Center on Sustainable Investment

In 2015, the International Labour Organization (ILO) adopted Guidelines for a Just Transition Towards Environmentally Sustainable Economies and Societies for All, providing authoritative and valuable international guidance for just transitions. CCSI has conducted a comparative analysis of the application of the ILO Guidelines in South Africa and Germany and examined the extent to which the ILO Guidelines address energy transition challenges facing developing countries.

The CCSI report, Global Guidance for Just Transition Policy, provides detailed context on South Africa’s and Germany’s national socio-political and energy conditions and policies, and comprehensively examines the legal and policy instruments adopted by both countries …

The Private Litigation Impact Of New York’S Green Amendment, Evan Bianchi, Sean Di Luccio, Martin Lockman, Vincent Nolette

Sabin Center for Climate Change Law

The increasing urgency of climate change, combined with federal environmental inaction under the Trump Administration, inspired a wave of environmental action at the state and local level. Building on the environmental movement of the 1970s, activists have pushed to amend more than a dozen state constitutions to include “green amendments” — self-executing individual rights to a clean environment. In 2022, New York activists succeeded, and New York’s Green Amendment (the NYGA) now provides that “Each person shall have a right to clean air and water, and a healthful environment.”

However, the power of the NYGA and similar green amendments turns …

Climate Change And Human Health: A Synthesis Of Scientific Research And State Obligations Under International Law, Jessica A. Wentz

Sabin Center for Climate Change Law

This report synthesizes the latest scientific research on the human health effects of climate change and discusses the legal implications of this research, specifically with regards to State obligations under international law. In doing so, the report seeks to provide insights on issues to be analyzed by the International Court of Justice (ICJ) in its upcoming advisory opinion on the legal obligations of States with respect to climate change. It also seeks to enhance the capacity of judges, advocates, and governments to understand these issues in the context of current and future proceedings involving international law obligations related to climate …

The Remedial Rationale After Sffa, Olatunde C.A. Johnson

Faculty Scholarship

After the Supreme Court’s ruling in Students for Fair Admissions, Inc. v. President & Fellows of Harvard College (SFFA) limiting the ability of higher education institutions to use race as a factor to advance diversity in the student body, at least one prominent commentator suggested that universities should now justify their affirmative action policies based not on diversity but on the need to remedy discrimination. Chief Justice John Roberts’s majority opinion deems diversity — the rationale established in Regents of the University of California v. Bakke and affirmed in Grutter v. Bollinger — a “commendable” goal. But the …

Executive Actions To Ensure Safe And Responsible Ocean Carbon Dioxide Removal Research In The United States, Romany M. Webb, Korey Silverman-Roati

Sabin Center for Climate Change Law

This paper presents recommended actions that federal agencies could take, under existing law, to ensure safe and responsible permitting and regulation of ocean carbon dioxide removal (CDR) research in U.S. waters. Controlled field trials and other in-ocean research is critical to improve scientific and societal understanding of ocean CDR techniques that could help the U.S. reach its climate goals. That could raise a host of legal issues, however. Existing legal frameworks were not designed to regulate ocean CDR, and federal agencies have yet to fully explain how decades-old environmental laws will be applied to a new set of activities. This …

Urban Flooding: Legal Tools To Address A Growing Crisis, Michael B. Gerrard

Faculty Scholarship

While sea level rise has long received a great deal of attention, another impact of climate change is now getting greater notice — increases in extreme precipitation. As the atmosphere warms, it can hold more moisture; for every increase of one degree Celsius, seven percent more water vapor is carried in the air. When that moisture is quickly released as intense rainstorms, stormwater systems can be overwhelmed, and cities can suffer devastating floods.

The frequency and intensity of heavy precipitation events have increased since the 1950s over most of the world's land areas. One 2023 study — generally consistent with …

Advisory Opinion On Climate Change: Summary Of Written Observations Submitted To The Inter-American Court Of Human Rights (Part 1), Maria Antonia Tigre

Sabin Center for Climate Change Law

On January 9, 2023, the Foreign Ministers of Chile and Colombia requested an advisory opinion from the Inter-American Court of Human Rights (IACtHR) on the scope of state obligations for responding to the climate emergency under the frame of international human rights law and, specifically, under the American Convention on Human Rights. Within this context, the IACtHR received a total of 255 amicus brief submissions.

This report includes summaries of the amicus briefs submitted to the Court. Due to the number of submissions received and the short timeframe prior to the hearings, the report is divided into parts. This first …

Sabin Center For Climate Change Law Annual Report 2023, Sabin Center For Climate Change Law

Sabin Center for Climate Change Law

This year the Sabin Center for Climate Change introduces its first annual report, which highlights and synthesizes our cutting-edge research and innovative engagements in 2023.

New York City Relaxing Environmental Review Rules For Housing Construction, Michael B. Gerrard

Faculty Scholarship

Faced with a severe housing shortage, New York City is exempting the construction of much new housing from the environmental review processes and taking many other steps to encourage such construction throughout the city. Several of these moves will also help the transition away from fossil fuels to renewable energy.

(How) Can Litigation Advance Multiracial Democracy?, Olatunde C.A. Johnson

Faculty Scholarship

Can rights litigation meaningfully advance social change in this moment? Many progressive or social justice legal scholars, lawyers, and advocates would argue “no.” Constitutional decisions issued by the U.S. Supreme Court thwart the aims of progressive social movements. Further, contemporary social movements often decenter courts as a primary domain of social change. In addition, a new wave of legal commentary urges progressives to de-emphasize courts and constitutionalism, not simply tactically but as a matter of democratic survival.

This Essay considers the continuing role of rights litigation, using the litigation over race-conscious affirmative action as an illustration. Courts are a key …