The European Union agreed in July 2022 to include nuclear power in its taxonomy of environmentally sustainable economic activities. Yet as Columbia University senior research scholar Matt Bowen and research assistant Kat Guanio note in commentary published July 6 by Columbia University’s Center on Global Energy Policy, that policy decision remains “a bit of an outlier.” Despite nuclear energy’s anticipated role in achieving decarbonization, many climate finance taxonomies either explicitly exclude nuclear power or are discouragingly ambiguous.

Fusion energy research has seen exciting recent breakthroughs. The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory has achieved ignition,^1,2 and in the United Kingdom, the Culham Centre for Fusion Energy’s Joint European Torus (JET) has produced a record 59 megajoules of fusion energy.³ Against this backdrop of advances, we provide an account of the earliest fusion discoveries from the 1930s to the 1950s.* Some of this technical history has not been previously appreciated—most notably the first 1938 reporting of deuterium-tritium (DT) 14-MeV neutrons at the University of Michigan by Arthur Ruhlig.⁴ This experiment had a critical role in inspiring early thermonuclear fusion research directions. This article presents some unique insights from the extensive holdings within Los Alamos National Laboratory’s archives—including sources typically unavailable to a broad audience.

Paul Dabbar, former undersecretary for science at the Department of Energy and distinguished visiting fellow at Columbia University’s Center on Global Energy Policy, is lauding the recent successful test of a 10-ton high-temperature superconducting magnet performed by researchers at the Massachusetts Institute of Technology and Commonwealth Fusion Systems. In an op-ed published on September 10 in The Hill, Dabbar calls for a new level of investment and support for the commercial fusion sector.

A new report out of Columbia University’s Center on Global Energy Policy (CGEP) offers a number of recommendations for improving the management of spent nuclear fuel and high-level radioactive waste in the United States.

The report, Forging a Path Forward on U.S. Nuclear Waste Management: Options for Policy Makers, explains how the United States reached its current stalemate over nuclear waste disposal. It then examines productive approaches in other countries, and a few domestic ones, that could guide policymakers through options for improving the prospects for finding a disposal path for U.S. spent fuel and HLW.

Part of the center’s wider work on nuclear energy, the report echoes previous recommendations for U.S. spent fuel and HLW management, such as the use of a consent-based siting process and the formation of an independent waste management organization, both of which were recommended in the Blue Ribbon Commission’s 2012 report to the Secretary of Energy and Stanford University’s 2018 report, Reset of U.S. Nuclear Waste Management Strategy and Policy.