Today: The first lawsuit targeting the Environmental Protection Agency's rollback of the Obama-era Endangerment Finding; a shortage of fuel for nuclear reactors; DEI rules that changed corporate boards are vanishing.

Welcome back: A coalition of climate and health organizations sued the Environmental Protection Agency this week in an effort to combat its repeal of a landmark climate finding, Clara Hudson reports.

The suit follows the EPA’s move last week to rescind the Obama-era “endangerment finding,” the legal foundation for federal greenhouse gas emissions regulation that classifies six gases as a threat to public health and welfare. The decision will nix rules requiring companies to report and measure vehicle emissions, plus cut credit provisions and reporting obligations across industries.

The petition, filed in the U.S. Court of Appeals for the District of Columbia, was brought by climate and health groups including the Sierra Club, Public Citizen, the American Lung Association, Friends of the Earth and the Environmental Defense Fund.

The EPA said that “unlike our predecessors, the Trump EPA is committed to following the law exactly as it is written and as Congress intended—not as others might wish it to be.”

• Attorneys general from 13 states are suing the Trump administration for ending billions in funding for renewable-energy projects in mostly Democratic-led states. The lawsuit says that the U.S. Energy Department and the Office of Management and Budget shouldn’t be able to end funding that received bipartisan congressional approval. (WSJ)

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The surge in demand for nuclear power to keep artificial intelligence data centers running is stressing the global uranium supply, raising concerns about a potential shortage of fuel for reactors, Anthony Harrup writes.

The U.S. has the world’s largest fleet of nuclear reactors. However, it has little uranium production, and relies heavily on imports from Canada, Kazakhstan, Australia and Russia. 

The U.S. imports about two-thirds of its enriched uranium, much of it from Russia, which faces a total ban starting in 2028.

Some see recycling of spent nuclear fuel eventually contributing to supply, and the Energy Department has made grants to companies developing recycling technologies, among them Curio and Oklo.

Anti-diversity activists are going after DEI policies for corporate boards, but a new analysis finds that companies have largely abandoned those goals already, Theo Francis reports.

S&P 500 companies are adding women and minority directors no faster than they did a decade ago, shortly before diversity, equity and inclusion policies became more common across the corporate world, according to a Wall Street Journal analysis of board data.

Companies adopted such policies in droves over the past decade in the face of pressure from institutional investors and states such as California to diversify their largely white and male boardrooms. Goldman Sachs, until a year ago, also mandated that companies have diverse boards as a criteria for the bank to take them public.

But as the political winds have shifted, companies have swiftly retreated. This week, the Journal reported that Goldman Sachs plans to drop a policy of considering candidate demographics—including race, gender, ethnicity and sexual orientation—when recruiting its own new directors.

• A Coca-Cola bottler faces a sex discrimination lawsuit from the Trump administration’s employment bias enforcer for allegedly holding a no-men-invited off-site event. (Dow Jones Risk Journal)
• The Justice Department sued Harvard University, saying the Ivy League college failed to comply with a federal investigation related to race and its admissions practices. (WSJ)

The U.S. may be scaling back climate initiatives but other countries–and especially the European Union–are forging ahead with new rules. The Dow Jones Risk Journal Summit in New York on March 4 will include a discussion on how companies can manage this complex picture. Speakers are Tim Mohin, partner and director at Boston Consulting Group, and Beth Sasfai from law firm Cooley.

Request a complimentary invitation here using code COMPLIMENTARY. Attendance is limited, and all requests are subject to approval.

• Trump designated glyphosate herbicides and phosphorus as critical to national defense, demoralizing his MAHA supporters. (WSJ)
   
• U.S. clean-energy dealmaking is showing signs of a comeback after last year’s sharp contraction. (Bloomberg)
   
• A collapsed pipe caused one of the largest sewage spills in U.S. history, releasing 240 million gallons of untreated waste into the Potomac. (WSJ)
   
• A two-day International Energy Agency meeting in Paris was marked by a sustained attack on net zero ambitions by the U.S. (FT)
   
• Extreme temperatures, record snowfall, surging energy use: Five charts illustrate how this isn’t just a tough winter—it’s a historic one. (WSJ)
   
• A conversation with Carbon Measures CEO Amy Brachio; the need for collaboration over standards; making history in Aspen. (Heavy Lifting)

WSJ Pro Sustainable Business gives you an inside look at how companies are tackling sustainability. Send comments to bureau chief Perry Cleveland-Peck at perry.cleveland-peck@wsj.com and reporters Clara Hudson at clara.hudson@wsj.com and Yusuf Khan at yusuf.khan@wsj.com. Follow us on LinkedIn at perrycp, clara-hudson and yusuf_khan.