President Trump, however, appears in no rush to follow suit. More than a year after taking office, Trump has yet to appoint a science adviser — longer than any other president since World War II, when Franklin D. Roosevelt created the position to receive technical, apolitical advice.

Presidents before him have sought the counsel of White House science advisers to build atomic weapons, seek cures for cancer, and devise policies to oversee research into stem cells, cloning, and the human genome.

CAMBRIDGE — When the Ebola virus began sweeping through West Africa four years ago, killing thousands of people and threatening to spread beyond the continent, President Obama turned to his science adviser for options.


His failure to fill the prominent post, which has required Senate confirmation since 1976, has raised concerns among scientists throughout the country, but perhaps nowhere more than in Cambridge, where the most recent White House science adviser is sounding the alarm.

“It’s mind-boggling,” said John Holdren, Obama’s science adviser for eight years who has since resumed his career as a professor of environmental policy at Harvard’s Kennedy School of Government. “It’s vital for the president to get the best science advice, and right now, he isn’t getting that. His decisions are being made without the benefit of science.”

A physicist, Holdren oversaw the White House Office of Science and Technology Policy, which had a staff of 135 people who advised the president through studies and briefings on subjects from climate change to nuclear weapons policy.

As an assistant to the president, Holdren was one of the few White House officials with direct access to Obama. That proximity allowed his staff to play key roles in helping the president navigate through complex crises, such as the 2010 Deepwater Horizon oil spill in the Gulf of Mexico and the 2011 nuclear meltdown at the Fukushima plant in Japan.


Since returning to Cambridge, Holdren and many of his colleagues have grown increasingly dismayed that Trump not only hasn’t appointed a science adviser – and may ultimately choose not to – but that his administration has given such short shrift to science in general.

As evidence, they point to Trump’s first budget, which proposed a 20 percent cut to the Energy Department’s Office of Science, an agency that oversees a vast amount of basic research at the national laboratories; an 18 percent cut to the National Institutes of Health; and a 31 percent cut to the Environmental Protection Agency.

Many of those proposed cuts are unlikely to make it through Congress, although lawmakers have yet to approve a budget for the current fiscal year.

White House officials wouldn’t discuss personnel decisions, but they said the Office of Science and Technology Policy now has a staff of just 50, far below the level under Obama. Fewer than half are scientists.

An official in the office, who spoke on condition of anonymity because he wasn’t authorized to discuss the matter publicly, said the staff has spent the year preparing reports on subjects including space policy, cyber security, and nuclear energy. He also said he expects the staff will grow in the coming years.

The official, however, acknowledged that the lack of a director has posed challenges.

“I’m not particularly concerned that this will result in Armageddon, as some make it sound, but I think it’s important for OSTP to get a director nominated and swiftly confirmed,” the official said. “I do believe the work that is being done is important, and I think the president appreciates that. There are a lot folks with scientific backgrounds.”


Trump is receiving scientific advice from members of his cabinet and other agencies, the official added.

Asked whether Trump intends to appoint a science adviser, who oversees the office, he said: “It’s my understanding that there will be a director appointed.”

But other top scientists around the country warned that briefings on technical matters from cabinet secretaries and agencies are insufficient.

“That advice is not always without bias, given the varied missions, cultures, and priorities of the different agencies,” said Neal Lane, a physicist who served as science adviser to President Clinton and called Trump’s delay in filling the post “a cause for alarm.”

Lane, who now teaches at Rice University in Houston, said the post is vital, especially in times of crises, because it gives the president a trusted confidant who can “quickly pull together relevant information and give [him] truly unbiased advice.”

“History tells us that President Trump will face decisions in future times of crisis and many of those will require technical advice,” he added. “Who can he depend on when that happens?”

Others said that damage has already been done.

They noted that Trump has already slashed funding for clean energy research and announced that the United States would withdraw from the Paris climate accord.


Ken Kimmell, president of the Union of Concerned Scientists, a Cambridge advocacy group that represents thousands of scientists around the country, noted that Trump recently sought to cast doubt on climate change, falsely telling a British broadcaster that polar ice caps were not melting but “setting records.”

“He desperately needs a science adviser in the White House to set him straight on basic scientific facts and ensure that science factors into decision-making,” Kimmell said. “However, one science adviser can’t undo all the damage that is being caused by budget cuts to scientific research, the dismissal of academic scientists from government advisory commissions, the deletion of scientific information from agency websites, and the clear message from above that certain topics, such as climate change, cannot be freely discussed.”

Some wondered whether Trump has any interest in science at all.

Rush D. Holt, a physicist and former congressman who now leads the American Association for the Advancement of Science, the world’s largest scientific society, said every president should have a science adviser, noting that they can help “recognize the science in an issue that is not obviously scientific.”

“The most serious problems come when there is a president who willfully ignores and does not have any apparent interest in science or in seeking credible information and advice from scientists,” Holt said.

For his part, Holdren is working with Holt and others to promote science and push back against the Trump administration when it takes actions or makes statements that contradict scientific findings.


Rather than settling quietly back into his academic career, Holdren has given speeches, written essays, and drummed up opposition to what he describes as the Trump administration’s “assault on science.”

“We’re trying to replace what Trump is cutting, while responding to his indignities,” he said. “The stakes are high. There’s a danger that the United States could lose its leadership in science and technology.”

David Abel can be reached at dabel@globe.com. Follow him on Twitter @davabel.