After years of legwork, Harvard researchers canceled plans to test a controversial theory for cooling the planet by sending sunlight-reflecting particles up into the atmosphere. Now, members of an independent advisory committee tasked with addressing ethics and safety concerns are sharing what they learned from the ill-fated project.
Science
A controversial experiment to artificially cool Earth was canceled — what we know about why
A policy analysis published in the journal Science on Friday highlights how important it is to talk to people on the ground before launching an experiment, especially one tied to potentially planet-altering consequences. The paper echoes recent calls to get policies in place to protect against any unintended side effects.
Until pretty recently, the thought of reflecting sunlight back into space to combat global warming — a process called solar geoengineering — seemed to be firmly rooted in science fiction. But with the climate crisis worsening, the idea has started to move from the fringes of academic research to garner more serious debate.
“Public engagement is necessary”
Some researchers and their Silicon Valley backers want to put the theory to the test. And time is running out to establish rules for how to craft those experiments responsibly, which could help determine whether solar geoengineering will do more harm than good.
“One of the core messages that comes out of this is that public engagement is necessary even when you don’t think that the impact of the experiment is going to be felt in a real way, in a concrete way, in real time. This issue has such a long tail, and it has such deeper meaning for so many people,” says Sikina Jinnah, lead author of the Science policy analysis and a professor of environmental studies at the University of California, Santa Cruz.
Harvard researchers launched the project called SCoPEx — short for Stratospheric Controlled Perturbation Experiment — back in 2017. To better understand any potential risks or benefits associated with solar geoengineering, it planned to conduct the first-ever outdoor experiment using reflective particles. It would have released some of those aerosols into the stratosphere via balloon and then piloted the balloon back through the plume to take measurements. The aim was to observe how the particles interact with each other and other elements of that environment — resulting in data that could be used to make more accurate computer models.
That never happened. There was supposed to be an engineering test flight without any particle release in Sweden in 2021, but it was scrapped after facing strong opposition from local Indigenous leaders. A big point of contention was that the researchers didn’t initially reach out to the Saami Council, which represents Saami Indigenous peoples’ organizations in the region. Members of SCoPEx’s advisory committee didn’t agree on whether to consult with the Saami since the test flight wasn’t going to release anything into the atmosphere, according to the policy analysis. The majority wound up deciding that the test flight could go ahead if there weren’t any significant environmental concerns to flag.
The Saami Council caught wind of the plans anyway and wrote a strongly worded letter to the advisory committee demanding the researchers cancel the flight. They said it was “remarkable” that the test flight would take place without consulting the Saami people or other local stakeholders, given the controversies swirling around solar geoengineering. Local environmental advocates, including Swedish chapters of Greenpeace and Friends of the Earth, also signed the letter.
Solar geoengineering is still considered a “false solution” to climate change by many activists. Injecting particles in the atmosphere attempts to recreate the way erupting volcanoes can temporarily cool the planet by releasing sulfur dioxide. But sulfur dioxide might also lead to acid rain, worsen the Antarctic ozone hole, or have other unforeseen consequences. There are also fears that solar geoengineering could detract from efforts to transition to clean energy, or lead to a dangerous swing in global temperatures if it’s ever implemented and then abruptly stopped.
“We note that [solar geoengineering using reflective particles] is a technology that entails risks of catastrophic consequences … There are therefore no acceptable reasons for allowing the SCoPEx project to be conducted either in Sweden or elsewhere,” the Saami Council letter says.
The advisory committee ultimately recommended canceling the test flight in Sweden after receiving that letter. By 2023, Harvard had told the advisory committee that it had “suspended” the project and then canceled it altogether in March of this year. The project “struggled both with intense media attention and with how to address calls from the scientific advisory committee to broadly and formally engage with the public,” Nature reported at the time, citing one of its project leaders.
“I’m grateful for the SCoPEx Advisory Committee’s insights. Their thoughtful analysis is valuable to the scientific community as it considers important questions of governance,” Frank Keutsch, who was the principal investigator for SCoPEx, tells The Verge in an email. He didn’t elaborate more on why the project ended.
It’ll take more than an ad hoc committee to effectively oversee geoengineering research moving forward, according to the newly published policy analysis. “The time is ripe for governments to begin discussing coordination of research governance,” it says.
Those talks have already started at the European Commission and the United Nations Environment Assembly, although they haven’t led to any concrete new policies yet. There has been a moratorium on large-scale geoengineering since a United Nations biodiversity conference in 2010, but it excludes small-scale scientific research.
And small fly-by-night initiatives have become a bigger concern lately. Last year, the founders of one geoengineering startup grilled fungicide in a California parking lot to produce sulfur dioxide gas that they then attempted to launch into the atmosphere via weather balloons. That followed a similar balloon launch in Mexico that prompted the government there to bar solar geoengineering experiments. The policy analysis calls the startup’s efforts “irresponsible” and “not tied to any legitimate scientific pursuit.”
Since then, there have been calls to either lay down rules for how to regulate future experiments or to stop solar geoengineering altogether. But without broader policies in place, keeping up with new geoengineering efforts gets to be a bit like playing whack-a-mole around the world.
Those policies could also ensure that nearby communities get to have a say in projects that might affect them. And as we’ve learned with SCoPEx, even more studious efforts can skip that step to their own detriment.
Science
NASA wants SpaceX and Blue Origin to deliver cargo to the moon
The agency wants Elon Musk’s SpaceX to use its Starship cargo lander to deliver a pressurized rover to the Moon “no earlier” than 2032, while Jeff Bezos’ Blue Origin will be tasked with delivering a lunar surface habitat no sooner than 2033. Both launches will support NASA’s Artemis missions, which aim to bring humans back to the Moon for the first time in over 50 years.
Both companies are developing human landing systems for Artemis missions — SpaceX for Artemis III and Blue Origin for Artemis V. NASA later asked both companies to develop cargo-hauling variants of those landers, capable of carrying 26,000 to 33,000 pounds of equipment and other materials to the Moon.
NASA says it will issue proposals to SpaceX and Blue Origin at the beginning of next year.
“Having two lunar lander providers with different approaches for crew and cargo landing capability provides mission flexibility while ensuring a regular cadence of Moon landings for continued discovery and scientific opportunity,” Stephen D. Creech, NASA’s assistant deputy associate administrator for the Moon to Mars program, said in the announcement.
Science
Brazil leads new international effort against climate lies
Brazil and the United Nations launched a new international effort to combat disinformation on climate change. They announced the Global Initiative for Information Integrity on Climate Change during the G20 Leaders’ Summit taking place in Rio de Janeiro, Brazil.
It’s a collaboration between governments and international organizations to boost research on misinformation swirling online and around the globe that they fear could slow action on climate change. There isn’t much information available yet, but they say they’ll fund nonprofit efforts to counter that spread of lies.
“Countries cannot tackle this problem individually,” President of Brazil Luiz Inácio Lula da Silva said in a press release.
“Countries cannot tackle this problem individually.”
Only Chile, Denmark, France, Morocco, the United Kingdom, and Sweden have joined Brazil in the initiative so far. Countries that make the commitment are expected to contribute to a fund administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). The initial goal is to get more countries on board and raise $10 to 15 million over the next three years. The money is then supposed to be distributed to nonprofit organizations as grants to support research and public awareness campaigns on climate disinformation.
They haven’t yet named any specific groups they plan to work with; “calls for partnerships” are forthcoming. Some environmental organizations are already working together to study disinformation and push for measures to stop its spread, like the Climate Action Against Disinformation coalition that publishes reports on misinformation trends and advocates for more stringent content moderation.
A webpage for the new global initiative says environmental disinformation is “increasingly spreading through social media, messaging apps, and generative AI.” That has “serious” consequences, it says: “it undermines scientific consensus, obstructs authorities’ ability to respond effectively to the crisis, and threatens the safety of journalists and environmental defenders working on the frontlines.”
FEMA employees faced violent threats on social media in the aftermath of Hurricane Helene in the US, for example. Accounts spewing misinformation about the storm and FEMA were also tied to content denying climate change, according to an analysis by the Institute for Strategic Dialogue (ISD) in October. Posts baselessly accused FEMA of seizing private property and confiscating donations — lies that risked deterring storm survivors from applying for assistance, and that raised fears that FEMA staff might face attacks.
United Nations Secretary-General António Guterres also voiced his concerns during remarks today with both the G20 summit and a UN conference on climate change currently underway. “We must also take on climate disinformation,” Guterres said. “Our climate is at a breaking point.”
Science
Amazon and SpaceX attack US labor watchdog in court
Amazon and SpaceX are seeking to hamstring the National Labor Relations Board, asking a court to declare its processes for upholding labor law unconstitutional. But judges on a three-person panel appeared skeptical when the companies presented their arguments Monday.
In two separate cases before the Fifth Circuit Court of Appeals, the two companies argued that the NLRB is unlawfully forcing them to participate in administrative law proceedings over alleged anti-labor actions. The Amazon case centers around whether it’s required to bargain with the union at its JFK 8 fulfillment center on Staten Island, while the SpaceX case involves a charge by former employees who claimed they were fired after being critical of CEO Elon Musk.
A ruling in favor of the companies could undermine the NLRB’s power to enforce protections for workers. It comes just as vocal pro-union President Joe Biden is leaving office and deregulation-friendly President-elect Donald Trump takes over. Trump notably counts Musk among his chief allies after his massive fundraising push. The NLRB is an independent agency with five board members appointed by the president to 5-year terms.
During oral arguments, the judges mostly prodded attorneys on the finer points of the companies’ decisions to appeal, and the timeline of their objections. At one point, Judge James Graves Jr., an Obama appointee, expressed doubt that Amazon had even met the conditions for an appeal — suggesting it should have waited on the ruling from the district court first. Two days after Amazon’s notice of appeal, the district court denied Amazon’s request for a temporary restraining order on its NLRB proceedings.
Both companies are seeking to short-circuit the NLRB’s proceedings with a court order
George W. Bush-appointed Judge Priscilla Richman similarly pressed SpaceX’s counsel Michael Kenneally about why the company rushed to an appeal, rather than letting the case progress in a lower court. Kenneally said SpaceX waited as long as it felt it could to bring its challenge and accused the government of leaning on procedural arguments because it couldn’t defend the NLRB’s constitutionality. Graves appeared skeptical. “That sounds to me about like the argument that, ‘well, procedure doesn’t matter if I win on the merits, so just skip right over procedure,’” he said.
Both companies are seeking to short-circuit the NLRB’s proceedings with a court order, which requires demonstrating this would cause them irreparable harm. But in Amazon’s case, NLRB counsel Tyler Wiese called the company’s deadline for the district court “imaginary,” and said, “merely proceeding through an administrative process is not irreparable harm.”
Amazon and SpaceX both argue that the NLRB’s administrative proceedings are tainted because its board members or administrative law judges are unconstitutionally insulated from removal. They point to Article II of the Constitution, which says the president must “take care that the Laws be faithfully executed,” which they say includes removing officials.
Amazon also says the NLRB is violating the Seventh Amendment, which protects the right to a jury trial in certain civil cases. It argues that the NLRB shouldn’t be allowed to decide on financial remedies related to the case because it would deny the company due process. Cox said the board itself “improperly interfered with the [union] election by exercising its prosecutorial authority,” so failing to stop the proceedings would let the NLRB as as judge and prosecutor.
The NLRB says it feels confident in a 1937 Supreme Court ruling on the constitutionality of the National Labor Relations Act. “It is nothing new for big companies to challenge the authority of the NLRB to enforce workers’ rights so as not to be held accountable for their violations of the National Labor Relations Act,” NLRB General Counsel Jennifer Abruzzo said in a statement. “While the current challenges require the NLRB to expend scarce resources defending against them, we’ve seen that the results of these kinds of challenges is ultimately a delay in justice, but that ultimately justice does prevail.”
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