Khosla Ventures backs effort to build ‘orchards’ of ‘fruit’ with lung-like material to remove CO2 from the air
CEO Charles Cadieu (L) and CTO Matt Lee standing in front of the future home of the Spiritus Orchard facility, located in the Western U.S. (The exact location is not yet public.)
Photo courtesy Spiritus
A successful serial entrepreneur and a seasoned chemical engineer with a decade of experience at one of the nation’s premier national labs have come together to develop and scale a new direct air capture technology that mimics the architecture of a human lung.
The founders of the startup, named Spiritus after the Latin word for “breath,” began work in December 2021, and the company is officially coming out of stealth on Wednesday, with the announcement of an $11 million funding raise led by prominent Silicon Valley venture capital firm Khosla Ventures, with other investors including Page One Ventures.
Spiritus has built a novel approach to direct air carbon capture that relies on a material that absorbs carbon dioxide passively. Critically, Spiritus has developed a particular architecture that mimics the alveoli in the lungs in order to maximize the surface area for carbon dioxide to make contact with the material.
This lung-like material, technically called a “sorbent,” will be shaped in round balls and laid out like artificial fruits in a carbon-capture orchard, CEO Charles Cadieu and CTO Matt Lee told CNBC in a phone interview on Tuesday.
When the lung-like “fruit” have been collected from the carbon “orchard,” they will be put in a container, where low heat will be applied to remove the carbon dioxide. The desorption process will be powered by clean energy to ensure the process is a not adding emissions to the atmosphere. Once the CO2 has been removed from the lung-like fruit, the sorbent can then be returned to the carbon orchard and reused.
The sorbent developed by Spiritus, made to mimick the human lung.
Photo courtesy Spiritus
‘Mother nature’s the true artist’
Lee worked at Los Alamos National Lab from September 2012 to June 2022 on a variety of chemical engineering advanced material projects, including some with national security and defense applications, as well as heat shields and laser fusion fuel target pellets similar to those used at the Lawrence Livermore National Laboratory to achieve a key milestone in nuclear fusion. He is a specialist in colloid science, which is the study of materials where particles of one substance are suspended in another.
Lee hadn’t worked on carbon capture technology applications until Cadieu inspired him to consider the problem. The pair had known each other for about 15 years through a family friend and had enjoyed keeping tabs on each other’s projects.
Previously, Cadieu co-founded Caption Health, a health care startup that uses artificial intelligence to assist in ultrasound scans. Caption Health received funding from the Bill and Melinda Gates Foundation in September 2020 for its capacity to enable non-experts to perform lung ultrasounds and was sold to GE Healthcare in February 2023. Also, Cadieu was a founding team member of IQ Engines, an image recognition software company which Yahoo acquired in 2013.
When Cadieu approached Lee to consider carbon capture, Lee approached the problem with a philosophy he has carried through much of his career: “Mother nature’s the true artist and she’s had a lot more practice than we have had,” Lee told CNBC. The other prong of his philosophy is summarized by a Leonardo da Vinci quote Lee recounted: “Simplicity is the ultimate sophistication.”
That’s why they looked at lungs.
Matt Lee, the chief technical founder, is a chemical engineer with an expertise in colloid science, which is the study of materials where particles of one material are suspended in another.
Photo courtesy Matt Lee
“Lungs are very well rehearsed at doing this — taking a large volume of air and then dispersing it or spreading it out over an extraordinary high amount of interface that the alveoli make with other parts of the body,” Lee told CNBC. That’s important because while carbon dioxide levels in the atmosphere are at record high levels, carbon dioxide is still diluted and makes up a relatively small percentage of the air.
“In order to capture some significant quantities of carbon dioxide on your sorbent, you simply have to expose it to a lot of air — a massive amount — and so finding the structure that can simultaneously give you that highly efficient contact with a large amount of active surface per unit volume enables you to have a process that is viable, feasible, economical,” Lee told CNBC.
That third component — economical — is critical in the direct air carbon capture field, and is part of what drew Khosla Ventures to make its first direct air capture investment in Spiritus.
“We’ve been watching on the sidelines evaluating all the technologies,” Rajesh Swaminathan, partner at Khosla Ventures, told CNBC in a phone conversation on Tuesday. Direct air capture is still a nascent industry and therefore very expensive right now, but Spiritus uses less energy than most of the other competitors in the space, Swaminathan said.
The absorption of carbon dioxide is passive, and the desorption process, where the carbon dioxide is removed from the “fruit” made with the lung-like material, takes a comparatively low amount of energy, Swaminathan said.
This is a model of the Spiritus equipment used to remove carbon dioxide from the sorbent.
Image courtesy Spiritus
“A lot of direct air capture processes, they require either a lot of high heat — and ours requires low heat — or they require a lot of energy, even if low heat, and ours is less than half of what’s been previously achieved by other solutions,” Cadieu told CNBC. “So this is another part of this overall equation that drives down low costs.”
The U.S. Department of Energy has a public initiative called the “Carbon Negative Shot,” which is its name for the push to drive innovation that can capture carbon dioxide, remove it from the atmosphere and store it for less than $100 per metric ton. Spiritus is driving towards this $100 per metric ton goal.
Spiritus will partner with companies specializing in carbon sequestration to take that removed carbon and put it away.
Cadieu says the artificial carbon orchards that Spiritus plans to build are more efficient than biologic trees and so take a smaller land footprint to absorb carbon dioxide than biologic forests. When the carbon captured with artificial trees is stored, it also has the advantage of sequestering carbon permanently. When biologic trees decompose after they die or burn in a fire, carbon they contain is released back into the atmosphere.
“We’re able to remove about 1,000 times more carbon dioxide than a forest can. And so this solution is actually far more efficient than forestry for removing carbon dioxide from the atmosphere per acre,” Cadieu said.
Jakub Porzycki | Nurphoto | Getty Images
Mark Zuckerberg’s announcement this week that Meta would pivot its moderation policies to allow more “free expression” was widely viewed as the company’s latest effort to appease President-elect Donald Trump.
More than any of its Silicon Valley peers, Meta has taken numerous public steps to make amends with Trump since his election victory in November.
That follows a highly contentious four years between the two during Trump’s first term in office, which ended with Facebook — similar to other social media companies — banning Trump from its platform.
As recently as March, Trump was using his preferred nickname of “Zuckerschmuck” when talking about Meta’s CEO and declaring that Facebook was an “enemy of the people.”
With Meta now positioning itself to be a key player in artificial intelligence, Zuckerberg recognizes the need for White House support as his company builds data centers and pursues policies that will allow it to fulfill its lofty ambitions, according to people familiar with the company’s plans who asked not to be named because they weren’t authorized to speak on the matter.
“Even though Facebook is as powerful as it is, it still had to bend the knee to Trump,” said Brian Boland, a former Facebook vice president, who left the company in 2020.
Meta declined to comment for this article.
In Tuesday’s announcement, Zuckerberg said Meta will end third-party fact-checking, remove restrictions on topics such as immigration and gender identity and bring political content back to users’ feeds. Zuckerberg pitched the sweeping policy changes as key to stabilizing Meta’s content-moderation apparatus, which he said had “reached a point where it’s just too many mistakes and too much censorship.”
The policy change was the latest strategic shift Meta has taken to buddy up with Trump and Republicans since Election Day.
A day earlier, Meta announced that UFC CEO Dana White, a longtime Trump friend, is joining the company’s board.
And last week, Meta announced that it was replacing Nick Clegg, its president of global affairs, with Joel Kaplan, who had been the company’s policy vice president. Clegg previously had a career in British politics with the Liberal Democrats party, including as a deputy prime minister, while Kaplan was a White House deputy chief of staff under former President George W. Bush.
Kaplan, who joined Meta in 2011 when it was still known as Facebook, has longstanding ties to the Republican Party and once worked as a law clerk for the late conservative Supreme Court Justice Antonin Scalia. In December, Kaplan posted photos on Facebook of himself with Vice President-elect JD Vance and Trump during their visit to the New York Stock Exchange.
Joel Kaplan, Facebook’s vice president of global policy, on April 17, 2018.
Niall Carson | PA Images | Getty Images
Many Meta employees criticized the policy change internally, with some saying the company is absolving itself of its responsibility to create a safe platform. Current and former employees also expressed concern that marginalized communities could face more online abuse due to the new policy, which is set to take effect over the coming weeks.
Despite the backlash from employees, people familiar with the company’s thinking said Meta is more willing to make these kinds of moves after laying off 21,000 employees, or nearly a quarter of its workforce, in 2022 and 2023.
Those cuts affected much of Meta’s civic integrity and trust and safety teams. The civic integrity group was the closest thing the company had to a white-collar union, with members willing to push back against certain policy decisions, former employees said. Since the job cuts, Zuckerberg faces less friction when making broad policy changes, the people said.
Zuckerberg’s overtures to Trump began in the months leading up to the election.
Following the first assassination attempt on Trump in July, Zuckerberg called the photo of Trump raising his fist with blood running down his face “one of the most badass things I’ve ever seen in my life.”
A month later, Zuckerberg penned a letter to the House Judiciary Committee alleging that the Biden administration had pressured Meta’s teams to censor certain Covid-19 content.
“I believe the government pressure was wrong, and I regret that we were not more outspoken about it,” he wrote.
After Trump’s presidential victory, Zuckerberg joined several other technology executives who visited the president-elect’s Mar-a-Lago resort in Florida. Meta also donated $1 million to Trump’s inaugural fund.
On Friday, Meta revealed to its workforce in a memo obtained by CNBC that it intends to shutter several internal programs related to diversity and inclusion in its hiring process, representing another Trump-friendly move.
The previous day, some details of the company’s new relaxed content-moderation guidelines were published by the news site The Intercept, showing the kind of offensive rhetoric that Meta’s new policy would now allow, including statements such as “Migrants are no better than vomit” and “I bet Jorge’s the one who stole my backpack after track practice today. Immigrants are all thieves.”
Recalibrating for Trump
Zuckerberg, who has been dragged to Washington eight times to testify before congressional committees during the last two administrations, wants to be perceived as someone who can work with Trump and the Republican Party, people familiar with the matter said.
Though Meta’s content-policy updates caught many of its employees and fact-checking partners by surprise, a small group of executives were formulating the plans in the aftermath of the U.S. election results. By New Year’s Day, leadership began planning the public announcements of its policy change, the people said.
Meta typically undergoes major “recalibrations” after prominent U.S. elections, said Katie Harbath, a former Facebook policy director and CEO of tech consulting firm Anchor Change. When the country undergoes a change in power, Meta adjusts its policies to best suit its business and reputational needs based on the political landscape, Harbath said.
“In 2028, they’ll recalibrate again,” she said.
After the 2016 election and Trump’s first victory, for example, Zuckerberg toured the U.S. to meet people in states he hadn’t previously visited. He published a 6,000-word manifesto emphasizing the need for Facebook to build more community.
The social media company faced harsh criticism about fake news and Russian election interference on its platforms after the 2016 election.
Following the 2020 election, during the heart of the pandemic, Meta took a harder stand on Covid-19 content, with a policy executive saying in 2021 that the “amount of COVID-19 vaccine misinformation that violates our policies is too much by our standards.” Those efforts may have appeased the Biden administration, but it drew the ire of Republicans.
Meta is once again reacting to the moment, Harbath said.
“There wasn’t a business risk here in Silicon Valley to be more right-leaning,” Harbath said.
While Trump has offered few specific policy proposals for his second administration, Meta has plenty at stake.
The White House could create more relaxed AI regulations compared with those in the European Union, where Meta says harsh restrictions have resulted in the company not releasing some of its more advanced AI technologies. Meta, like other tech giants, also needs more massive data centers and cutting-edge computer chips to help train and run their advanced AI models.
“There’s a business benefit to having Republicans win, because they are traditionally less regulatory,” Harbath said.
Meta’s CEO Mark Zuckerberg reacts as he testifies during the Senate Judiciary Committee hearing on online child sexual exploitation at the U.S. Capitol in Washington, U.S., January 31, 2024.
Evelyn Hockstein | Reuters
Meta isn’t alone in trying to cozy up to Trump. But the extreme measures the company is taking reflects a particular level of animus expressed by Trump over the years.
Trump has accused Meta of censorship and has expressed resentment over the company’s two-year suspension of his Facebook and Instagram accounts following the Jan. 6 attack on the Capitol.
In July 2024, Trump posted on Truth Social that he intended to “pursue Election Fraudsters at levels never seen before, and they will be sent to prison for long periods of time,” adding “ZUCKERBUCKS, be careful!” Trump reiterated that statement in his book, “Save America,” writing that Zuckerberg plotted against him during the 2020 election and that the Meta CEO would “spend the rest of his life in prison” if it happened again.
Meta spends $14 million annually on providing personal security for Zuckerberg and his family, according to the company’s 2024 proxy statement. As part of that security, the company analyzes any threats or perceived threats against its CEO, according to a person familiar with the matter. Those threats are cataloged, analyzed and dissected by Meta’s multitude of security teams.
After Trump’s comments, Meta’s security teams analyzed how Trump could weaponize the Justice Department and the country’s intelligence agencies against Zuckerberg and what it would cost the company to defend its CEO against a sitting president, said the person, who asked not to be named because of confidentiality.
Meta’s efforts to appease the incoming president bring their own risks.
After Zuckerberg announced the new speech policy Tuesday, Boland, the former executive, was among a number of users who took to Meta’s Threads service to tell their followers that they were quitting Facebook.
“Last post before deleting,” Boland wrote in his post.
Before the post could be seen by any of his Threads followers, Meta’s content moderation system had taken it down, citing cybersecurity reasons.
Boland told CNBC in an interview that he couldn’t help but chuckle at the situation.
“It’s deeply ironic,” Boland said.
— CNBC’s Salvador Rodriguez contributed to this report.
WATCH: Meta is returning to free speech tradition, says Facebook’s former chief privacy officer Chris Kelly
Jaap Arriens | Nurphoto | Getty Images
Apple is losing market share in China due to declining iPhone shipments, supply chain analyst Ming-Chi Kuo wrote in a report on Friday. The stock slid 2.4%.
“Apple has adopted a cautious stance when discussing 2025 iPhone production plans with key suppliers,” Kuo, an analyst at TF Securities, wrote in the post. He added that despite the expected launch of the new iPhone SE 4, shipments are expected to decline 6% year over year for the first half of 2025.
Kuo expects Apple’s market share to continue to slide, as two of the coming iPhones are so thin that they likely will only support eSIM, which the Chinese market currently does not promote.
“These two models could face shipping momentum challenges unless their design is modified,” he wrote.
Kuo wrote that in December, overall smartphone shipments in China were flat from a year earlier, but iPhone shipments dropped 10% to 12%.
There is also “no evidence” that Apple Intelligence, the company’s on-device artificial intelligence offering, is driving hardware upgrades or services revenue, according to Kuo. He wrote that the feature “has not boosted iPhone replacement demand,” according to a supply chain survey he conducted, and added that in his view, the feature’s appeal “has significantly declined compared to cloud-based AI services, which have advanced rapidly in subsequent months.”
Apple’s estimated iPhone shipments total about 220 million units for 2024 and between about 220 million and 225 million for this year, Kuo wrote. That is “below the market consensus of 240 million or more,” he wrote.
Apple did not immediately respond to CNBC’s request for comment.
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