EPA Administrator Scott Pruitt is calling for a “red team/blue team” review of climate science that would attempt to cast doubt on well-established science and lend an outsize voice to fringe scientists. The idea spread from a climate-denying scientist to conservative outlets like The Daily Caller and The Wall Street Journal to Pruitt, and now more right-wing outlets are promoting it.

How the “red team/blue team” idea spread

John Christy, a fringe scientist and climate denier, proposed the creation of a “red team” in comments submitted to the EPA in 2014. His proposal was promoted by the denialist Cooler Heads Coalition, a group of organizations that “question global warming alarmism.” In his comments, Christy wrote:

The EPA should constitute a “Red Team” of analysts, independent from the climate modeling industry, to judge the current state of knowledge, i.e. the current state of how much we know about the “why” of climate variations. Such an examination would provide transparency to the process and give confidence to the public that the agency values open examination of its methodology.

In 2015, Christy again promoted the idea of the federal government funding a new “red team” that would review the climate science currently being produced by what he calls the “blue team.” The Daily Caller reported on Christy’s proposal in December 2015:

Christy told the [Senate Subcommittee on Space, Science and Competitiveness] he believes the attempt to study climate change objectively is thwarted by the federal funding process.

Christy, a well-known climate change skeptic, suggests Congress can fix the problem by directly funding independent “red team” programs.

And in March of this year, Christy promoted the idea during a hearing held in the House Science Committee, which is chaired by Rep. Lamar Smith (R-TX), a noted climate denier. Judith Curry, another scientist who’s been skeptical of the mainstream consensus on climate change, also testified in favor of the idea. The Washington Post reported on Christy and Curry’s testimony and the “red team” idea:

A main mission of red teams would be to challenge the scientific consensus on climate change, including the work of the United Nations’ Intergovernmental Panel on Climate Change, whose reports are widely considered the authority on climate science.

On April 20, the idea got more exposure when it was endorsed in a Wall Street Journal op-ed by Steven Koonin, a theoretical physicist who has a history of climate denial and served as undersecretary at the Energy Department under President Barack Obama for two years before resigning. Koonin called on the Trump administration “to convene a ‘Red Team/Blue Team’ process for climate science, one of the most important and contentious issues of our age.” He continued:

The national-security community pioneered the “Red Team” methodology to test assumptions and analyses, identify risks, and reduce—or at least understand—uncertainties. The process is now considered a best practice in high-consequence situations such as intelligence assessments, spacecraft design and major industrial operations.

As justification for such an exercise, Koonin claimed that the “public is largely unaware of the intense debates within climate science.”

Shortly after his op-ed was published, Koonin told Axios, “I can tell you that’s found some resonance within the administration. I’m just going to say people seem to be interested.”

One of those people is Pruitt. In a radio interview on Breitbart News Daily on June 5, Pruitt expressed interest in the “red team/blue team” idea. From a Breitbart article about the interview:

“What the American people deserve is a true, legitimate, peer-reviewed, objective, transparent discussion about CO2,” [Pruitt] said. “There was a great article that was in the Wall Street Journal about a month or so ago called ‘Red Team, Blue Team’ by Steve Koonin, a scientist, I believe, at NYU. He talked about the importance of having a Red Team of scientists and a Blue Team of scientists, and those scientists get into a room and ask, ‘What do we know? What don’t we know? What risk does it pose to health in the United States and the world, with respect to this issue of [carbon dioxide]?’”

In the days after that interview, right-wing outlets picked up on the idea again. The Daily Caller reported that it “could upset the supposed ‘consensus’ on man-made global warming.” Breitbart said the proposal “has naturally caused massive upset among the ivory towers of climate science academe” where researchers “aren’t at all used to having their dodgy theories exposed to serious scrutiny.” The right-wing website Daily Signal, the conservative blog Power Line, and the climate-denial blog Watts Up With That also highlighted Pruitt's interview and the red team proposal.

Why the “red team/blue team” idea is wrongheaded

In advocating for a “red team” review of climate science, Pruitt, Koonin, and right-wing media are glossing over the fact that climate science already has a method for testing assumptions and analyses: the peer-review system. Climate science papers submitted to respected journals are reviewed by other scientists in the field to assess their soundness and validity.

As Peter Frumhoff, director of science and policy at the Union of Concerned Scientists, told The Washington Post in June, creating a red team to review climate science would constitute an act of false equivalence and lend, as the Post wrote, “more prominence to alternative ideas than they have earned in the refereed journal process.” Earlier, in March, he told the Post, “The notion that we would need to create an entirely different new approach, in particular for the specific question around global warming is unfounded and ridiculous and simply intended to promote the notion of a lack of consensus about the core findings, which in fact is a false notion.”

The Post also quoted Marshall Shepherd, professor of atmospheric science at the University of Georgia, who called Koonin’s proposal a “gimmick,” saying, “This just feels to me a like another way to skirt the tried and true scientific process that has worked for years in our field and many others.”

Climate science has already been litigated ad nauseum in mainstream forums. Numerous studies have found that the vast majority of climate scientists agree that humans are the primary cause of global warming. And recent studies examining the robustness of that consensus have reaffirmed it; about 97 percent of publishing climate scientists concur.

Creating a “red team” could lead to scenarios like the one at a House science committee hearing in March, when climate scientist Michael Mann was outnumbered by fringe scientists and forced to be the sole representative of the scientific consensus on climate change. “We find ourselves at this hearing today, with three individuals who represent that tiny minority that reject this consensus or downplay its significance, and only one—myself—who is in the mainstream,” Mann said in his opening testimony.

The impact of major newspapers’ opinion pages

Though fringe, right-wing media have played a substantial role in spreading the “red team/blue team” proposal and other denialist ideas, mainstream newspapers also bear some responsibility. When Pruitt referenced Koonin’s op-ed, it was the second time in less than a week that he had lifted an argument from the opinion pages of a major newspaper to cast doubt on established climate science. On June 2, standing at the podium of the White House press briefing room, Pruitt cited an error-riddled, denialist New York Times column by Bret Stephens in order to downplay “exaggerated” concerns about climate change.

As a Media Matters study conducted last year demonstrated, climate denial remains a significant problem in the major newspapers. The world has just endured the three hottest years on record, and newspapers are still allowing their opinion pages to be used to deny climate change. That trend is all the more alarming now that the Trump administration is quickly adopting those denialist arguments.