Climate Change

Companies seeking clarity on ever-changing climate change rules and concurrent renewable energy options regularly turn to Arnold & Porter for guidance. Our experience spans regulatory and compliance counseling, participation in rulemaking activities, representation in government and citizen enforcement actions, and defending some of the most significant litigation matters relating to climate change. Our team draws on the distinctive insights and experience of former EPA lawyers with decades of Clean Air Act experience and the director of the Sabin Center for Climate Change Law at Columbia Law School. We represent clients in the automotive, engine, railroad, fuel, electric power, stored energy, and chemical industries across all aspects of the federal Clean Air Act, as well as various state programs, particularly California. We appear regularly before US EPA, the various EPA regional offices, and the California Air Resources Board. Our broader climate change practice also extends to renewable energy and renewable fuel standards, carbon trading, GHG life cycle analysis, environmental assessment of climate impacts under NEPA, state and local climate regulations, climate litigation, green real estate, and fuel efficiency laws and regulations.

The following resources and perspectives address a range of both the large-scale developments and ongoing micro-actions affecting climate change-related regulatory/compliance, rulemaking, enforcement, and litigation issues.


US Climate Change Litigation Tracker


Clean Air Act Practitioners Debate Brett Kavanaugh's Judicial Record
Environmental Law Institute (
Review of Developments Under State Environmental Quality Review Act
New York Law Journal, Volume 260, No. 8
Patterns of Climate Change Litigation During Trump Era
New York Law Journal, Volume 259, No. 45
Survey of 2016 Cases Under New York State Environmental Quality Review Act
New York Law Journal, Volume 258, No. 08
Legal Pathways for a Massive Increase in Utility-Scale Renewable Generation Capacity
Environmental Law Reporter, News & Analysis
Shenkman Debuts Column on Intersection of Public Policy and Private Practice for Environmental Law Institute
Environmental Law Institute (
Proposals to Rollback Chevron Deference: Implications for Environmental Law Practitioners
ABA Section of Environment, Energy, and Resources
9 Things to Know About Trump's Paris Agreement Decision
California Law360, Corporate Law 360, Environmental Law360, Energy Law360, International Trade Law360, Project Finance Law360, Public Policy Law360
ITC Launches Investigation into Import of Solar Cells and Modules
Trump's Environmental Agenda: The 1st 100 Days
Energy Law360, Environmental Law360, Native American Law360, Project Finance Law360, Public Policy Law360
Trump's EO: What's Next for Energy, Enviro and Climate?
Corporate Law360, Energy Law360, Environmental Law360, Native American Law360, Project Finance Law360, and Public Policy Law360
Trump Issues Sweeping Executive Order on Energy, Environment and Climate Change
New York’s New Sea Level Rise Projections Will Affect Land Use, Infrastructure
New York Law Journal, Volume 257, No. 45
Trump Faces Obstacles in Plans to Rollback Environmental Regulations
The National Law Journal
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