Nonprofits are trying to preserve a US effort to modernize greenhouse-gas measurements, amid growing fears that the Trump administration’s dismantling of federal programs will obscure the nation’s contributions to climate change. It will build on an effort to improve the collection of emissions data that former president Joe Biden launched in 2023—and which President Trump nullified on his first day in office. During the Biden administration, the agency went after AI companies for scamming customers with deceptive advertising or harming people by selling irresponsible technologies. With the announcement of President Trump’s AI Action Plan, that era may now be over. It’s likely to result in faster deployment of AI with fewer checks on accuracy, fairness, or consumer harm.