A new analysis suggests that investing in wind and solar power yields greater climate and public health benefits than direct air capture, highlighting a strategic shift in decarbonisation efforts.
A new study suggests that, for now, the cleaner climate bet is to build out more wind and solar rather than pour scarce capital into direct air capture, a technology that removes carbon dioxide from the atmosphere but remains expensive and energy-intensive.
Published in Communications Sustainability, the analysis assessed the climate and health returns of spending the same amount of money on renewable generation or on direct air capture across 22 US electricity grid regions through 2050. The conclusion was clear: in almost every case, deploying renewables produced greater combined benefits than using the funds for carbon removal. Only in a highly optimistic “breakthrough” scenario for direct air capture, one assuming dramatic gains in efficiency and sharp cost reductions, did the technology begin to look more competitive.
The study was led by PSE Healthy Energy in collaboration with Boston University and Harvard T.H. Chan School of Public Health. Its authors modelled not just carbon impacts but also public health effects from air pollution, giving a broader picture of what a dollar spent on decarbonisation can deliver. That matters for industrial decarbonisation because investment choices are increasingly being judged not only on tonnes of carbon removed or avoided, but on system-wide value, including electricity costs, grid impacts and avoided health damage.
Jonathan J. Buonocore, a Boston University environmental health professor and senior author of the study, framed the question as one of capital allocation: if an investor has a fixed sum to deploy, what option cuts more atmospheric carbon per dollar? According to Buonocore, the answer was wind or solar, particularly in coal-heavy parts of the US grid. He also noted that renewable energy reduces pollution that direct air capture does not address.
That distinction is central to the paper’s argument. Renewable power displaces fossil fuel generation, cutting carbon dioxide while also reducing fine particulates, nitrogen oxides and sulphur dioxide. Direct air capture, by contrast, can only remove carbon already in the air. In the study’s current-performance case, grid-connected direct air capture was modelled as causing more greenhouse gas emissions and air pollution damage through 2050 than it offset.
The research does not present direct air capture as irrelevant. Rather, it suggests that the technology is better viewed as a later-stage tool once the larger work of stopping emissions at source is underway. In the near term, the authors say, the priority should be to “stop the flow” of carbon into the atmosphere by accelerating clean power and wider decarbonisation measures. For industrial users, that reinforces a familiar but often uncomfortable hierarchy: avoid emissions first, remove what remains second.
- https://gizmodo.com/forget-expensive-carbon-capture-renewables-are-the-cheaper-climate-fix-2000754604 – Please view link – unable to able to access data
- https://techxplore.com/news/2026-05-renewable-energy-effective-air-capture.html – A recent study published in Communications Sustainability indicates that investing in renewable energy, such as wind and solar power, is more cost-effective than direct air capture (DAC) for reducing atmospheric carbon. The research, led by PSE Healthy Energy and Boston University, found that across nearly all U.S. regions through 2050, funds allocated to renewable energy deployment yield greater combined climate and public health benefits than those invested in DAC technologies. Even under optimistic assumptions about DAC’s development, renewables consistently outperform DAC in cost-effectiveness.
- https://www.euronews.com/2026/05/04/turn-off-the-taps-before-mopping-the-floor-renewables-more-cost-effective-than-direct-air- – An analysis published in Communications Sustainability reveals that the case for investing in direct air capture (DAC) weakens substantially when compared to renewable energy sources like solar and wind. The study, conducted by PSE Healthy Energy in collaboration with Boston University and Harvard T.H. Chan School of Public Health, demonstrates that deploying renewable energy is more cost-effective than DAC in reducing atmospheric carbon across nearly all U.S. regions through 2050, even under highly optimistic assumptions about DAC’s technological advancements.
- https://www.eurekalert.org/news-releases/1126588 – A peer-reviewed study published in Communications Sustainability has found that investing in renewable energy, such as wind and solar power, is more cost-effective than direct air capture (DAC) for reducing atmospheric carbon. The research, led by PSE Healthy Energy in collaboration with Boston University School of Public Health and Harvard T.H. Chan School of Public Health, indicates that across nearly all U.S. regions through 2050, funds allocated to renewable energy deployment deliver greater combined climate and public health benefits than those invested in DAC technologies.
- https://sustainabilityonline.net/research/renewable-energy-more-cost-effective-than-direct-air-capture/ – A new study led by PSE Healthy Energy has found that investing in renewable energy delivers more cost-effective and positive environmental outcomes than direct air capture (DAC) when it comes to reducing carbon. The study, published in Communications Sustainability, indicates that the case for investing in DAC weakens substantially when compared to solar and wind. The research evaluates the potential impact of DAC compared to utility-scale solar and onshore wind across 22 electricity grid regions in the United States between 2020 and 2050.
- https://energyanalytics.org/direct-air-capture/ – A cost-benefit analysis by the National Center for Energy Analytics assesses the viability of direct air capture (DAC) in removing atmospheric carbon. The study concludes that DAC is inherently energy-intensive and costly, requiring substantial quantities of emissions-free electricity, either from nuclear plants or from wind and solar generation. The analysis suggests that the costs per tonne of CO₂ reduced by DAC far exceed even the most recent estimates of the social cost of carbon, making it an economically unviable solution compared to renewable energy investments.
- https://www.nature.com/articles/s44458-026-00068-0 – A study published in Communications Sustainability evaluates the health and climate opportunity costs of direct air capture (DAC) compared to renewable energy deployment. The research, led by PSE Healthy Energy with collaborators from Boston University and Harvard T.H. Chan School of Public Health, models the benefits of DAC, utility-scale solar, and onshore wind across 22 U.S. grid regions from 2020 through 2050. The findings indicate that, under all modeled scenarios, deploying renewable energy is more cost-effective than deploying DAC, except under a ‘Breakthrough’ DAC technology scenario.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
10
Notes:
The article was published on May 5, 2026, and references a study published on May 4, 2026, in Communications Sustainability. No earlier versions or recycled content were identified, indicating high freshness.
Quotes check
Score:
8
Notes:
The article includes direct quotes from Jonathan J. Buonocore, a senior author of the study. These quotes are consistent with those found in the original study and related press releases. However, the exact earliest usage of these quotes cannot be independently verified, which slightly reduces the score.
Source reliability
Score:
7
Notes:
The article is from Gizmodo, a reputable news outlet. However, it is not a major news organisation like the BBC or Reuters, which slightly lowers the score. The study itself was conducted by PSE Healthy Energy in collaboration with Boston University and Harvard T.H. Chan School of Public Health, lending credibility to the information.
Plausibility check
Score:
9
Notes:
The claims made in the article align with the findings of the referenced study, which has been peer-reviewed and published in a reputable journal. The study’s methodology and conclusions are plausible and consistent with existing research on renewable energy and direct air capture.
Overall assessment
Verdict (FAIL, OPEN, PASS): PASS
Confidence (LOW, MEDIUM, HIGH): MEDIUM
Summary:
The article is a recent, factual news report summarising a peer-reviewed study on the cost-effectiveness of renewable energy versus direct air capture. While the source is reputable, the reliance on press releases for verification slightly reduces the overall confidence. The content is not paywalled, and the claims are plausible and consistent with existing research. However, the inability to independently verify the earliest usage of quotes introduces a minor uncertainty.
