Last year, for the first time, global temperatures exceeded 1.5oC above pre-industrial levels. This follows a decade of “record-breaking temperatures,” with the World Meteorological Organization concluding that “the past ten years 2025-2024 are the ten warmest years on record.” Reversing this trend requires urgent action to reduce greenhouse gas emissions […]
Negative Emissions
34 posts
On March 4, 2025, the Supreme Court handed down an important ruling in City and County of San Francisco v. Environmental Protection Agency. In a 5-4 decision, the Court curtailed the Environmental Protection Agency’s (“EPA”) authority under the Clean Water Act (“CWA”) to issue pollutant discharge permits. The case involved […]
The burning of fossil fuels and other human activities are continuing to cause rapid temperature rise. 2024 was the hottest year on record, and the planet’s 10 warmest years since 1850 have occurred in the past decade. Achieving global climate goals will require rapid and dramatic greenhouse gas emissions reductions, […]
The Sabin Center for Climate Change Law at Columbia Law School, together with New York Sea Grant, is pleased to announce a writing competition for law students interested in writing on legal and policy issues associated with marine carbon dioxide removal. The competition is being held in connection with a […]
Our planet is undergoing significant changes due to climate disruption, with especially severe impacts on the ocean. Most climate action today rightly focuses on reducing greenhouse gas emissions. Unfortunately, these efforts are necessary, but not sufficient to meet global climate targets. The Sixth Assessment Report of the Intergovernmental Panel on […]
Late last year, members of the international community convened in London to discuss issues relating to implementation of the 1972 Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter (“London Convention”) and the 1996 Protocol to that Convention (“London Protocol”). Among the topics up for […]
The Sabin Center published a report that explores the international and U.S. laws governing atmospheric methane removal (“AMR”) via soil amendments. AMR refers to human interventions to accelerate the conversion of methane in the atmosphere to a form that causes less warming (e.g., converting it to carbon dioxide). Scientists have […]
The Sixth Assessment Report of the Intergovernmental Panel on Climate Change underscores the need for carbon dioxide removal (“CDR”) to complement emissions reductions in meeting global climate targets. Ocean-based CDR strategies, which aim to increase the ocean’s natural carbon sink capacity, are gaining attention. One such strategy, ocean alkalinity […]