{"publisher":{"name":"MediaBias News","url":"https://mediabias.news","methodology":"https://mediabias.news/methodology","editorialPrinciples":"https://mediabias.news/editorial-principles","corrections":"https://mediabias.news/corrections"},"scoreGuide":{"trust":"How well corroborated and evidenced the source reporting is. 0-100, higher is better.","critic":"Craft quality of the source journalism: context, balance, fact vs comment. 0-100, higher is better.","hype":"How far the source presentation runs ahead of substance. 0-100, LOWER IS BETTER.","scope":"Scores assess the original reporting this article was written from, not the truth of the underlying event and not the quality of this write-up."},"assessmentGuide":{"type":"coverage-and-source-reporting-analysis","factCheck":{"status":"not-performed","note":"Media Bias News compares coverage and scores the source reporting. It does not currently publish a ClaimReview verdict on whether the underlying event or claim is true."},"sourceFactuality":{"note":"Factuality values describe published ratings of the outlets that covered the story. They are not a factuality verdict on this story or its claims."}},"story":{"id":"https://mediabias.news/climate/company-plans-solar-geoengineering-to-cool-earth","slug":"company-plans-solar-geoengineering-to-cool-earth","url":"https://mediabias.news/climate/company-plans-solar-geoengineering-to-cool-earth","title":"Company plans solar geoengineering to cool Earth","subtitle":"Stardust Solutions proposes spraying particles into the atmosphere, drawing both investment and scientific concern.","excerpt":"An Israeli-US company, Stardust Solutions, is developing solar geoengineering technology to cool the planet by spraying particles into the atmosphere. The plan involves using silica and calcium carbonate particles at a cost of $10 billion per million tons annually, but scientists warn of unpredictable global consequences.","category":"Climate","area":null,"publishedAt":"2026-09-08T21:45:46.977Z","sourceReportedAt":"2026-09-08T21:16:11.254Z","updatedAt":"2026-09-08T21:45:46.977Z","readTime":"4 min read","scores":{"trust":42,"critic":57,"hype":60,"notes":{"trust":"Central claim attributed to named CEO; one full report and 17 digests; no independent outlets cited.","critic":"One full report, but most sources are digests; some sources lack specific details.","hype":"Headlines use urgent language like 'raising red flags' and 'playing Russian roulette'."}},"tags":["#ClimateChange","#SolarGeoengineering","#StardustSolutions","#ClimateTech","#EnvironmentalScience"],"entities":["Stardust Solutions","Yanai Yedvab","Raymond Pierrehumbert","David Keith","Kelly Wanser"],"body":[{"type":"key_takeaways","items":["Stardust Solutions, an Israeli-US company, is developing solar geoengineering technology to cool the planet by spraying particles into the atmosphere.","The proposed method uses particles made from amorphous silica and calcium carbonate, with each million-ton deployment costing $10 billion and requiring annual replenishment.","Scientists have raised concerns about potential disastrous global implications, including altered weather patterns and human health impacts.","Experts are also worried about a for-profit company developing technology with potentially huge and unpredictable repercussions."]},{"type":"paragraph","text":"Stardust Solutions, an Israeli-US company founded in 2023, is developing a method of solar geoengineering intended to cool the planet. The technology involves spraying particles into the atmosphere to reflect sunlight. The company's proposed particles are made from amorphous silica and calcium carbonate, substances found in food additives and eggshells respectively. According to the company, each million-ton deployment of these particles would cost approximately $10 billion and would need to be replenished annually."},{"type":"paragraph","text":"Scientists have expressed significant concerns about the potential implications of this technology. These include the possibility of disastrous global consequences such as altered weather patterns and adverse human health impacts. Some experts are particularly wary of a for-profit company developing technology that could have vast and unpredictable repercussions on a global scale."},{"type":"heading","text":"Disagreement on particle safety"},{"type":"paragraph","text":"While Stardust Solutions claims its particle design accounts for risks like the \"hitchhiker hypothesis\", where particles could pick up harmful substances, and that silica is considered safe, some experts remain unconvinced. David Keith, a professor of geophysical sciences, stated that Stardust is \"greatly overclaiming to say that they’re confident the risks [of their particles] are lower than with sulfur.\" Kelly Wanser, executive director of SilverLining, noted that it remains unclear how the particles will behave at scale in the atmosphere."},{"type":"heading","text":"What the coverage left out"},{"type":"paragraph","text":"None of the left- or centre-rated reports mention the specific figure of $75 million that Stardust Solutions has raised from investors, a detail present in the full report from KIFI."}],"basedOn":[{"sourceName":"Politico","url":"https://politico.com/news/2026/05/15/a-closely-guarded-plan-to-cool-earth-is-revealed-00920438","headline":"A closely guarded plan to cool Earth is revealed","angle":"","publishedAt":"2026-09-08T21:16:11.254Z"},{"sourceName":"The Times of Israel","url":"https://timesofisrael.com/israeli-tech-company-aiming-to-cool-the-earth-with-masses-of-tiny-particles-report","headline":"Israeli tech company aiming to cool the Earth with masses of tiny particles","angle":"","publishedAt":"2026-09-08T21:16:11.254Z"},{"sourceName":"Duurzaamnieuws","url":"https://duurzaamnieuws.nl/zonlicht-tegenhouden-om-de-planeet-af-te-koelen-russische-roulette-spelen-met-het-klimaat","headline":"Blocking Sunlight to Cool the Planet: Playing Russian Roulette with the Climate","angle":"","publishedAt":"2026-09-08T16:18:08.000Z"},{"sourceName":"CNN Brasil","url":"https://cnnbrasil.com.br/ciencia/uma-empresa-afirma-ter-descoberto-a-maneira-de-resfriar-o-planeta-por-us-10-bilhoes-com-mineral-de-casca-de-ovo-mas-cientistas-soam-o-alerta","headline":"One Company Claims to Have Discovered How to Cool the Planet for $10 Billion with Eggshell Ore, but Scientists Sound the Alert","angle":"","publishedAt":"2026-09-08T15:46:20.000Z"},{"sourceName":"skai.gr","url":"https://skai.gr/news/world/etaireia-isxyrizetai-oti-mporei-na-drosisei-ton-planiti","headline":"Global Warming: Company Claims It Can Cool the Planet","angle":"","publishedAt":"2026-09-08T14:20:04.000Z"},{"sourceName":"Washington Top News","url":"https://wtop.com/world/2026/09/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags – WTOP News","angle":"","publishedAt":"2026-09-08T11:30:19.000Z"},{"sourceName":"mezha.net","url":"https://mezha.net/eng/news/b5b861de_stardust_solutions_develops","headline":"Stardust Solutions Develops Solar Geoengineering to Cool Earth as Scientists Warn of Global Risks","angle":"","publishedAt":"2026-09-08T08:16:02.000Z"},{"sourceName":"CNN","url":"https://cnn.com/2026/09/08/climate/solar-geoengineering-stardust-solutions-cool-planet","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.546Z"},{"sourceName":"KIFI","url":"https://localnews8.com/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.000Z"},{"sourceName":"KRDO","url":"https://krdo.com/news/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.000Z"},{"sourceName":"KVIA","url":"https://kvia.com/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.000Z"},{"sourceName":"KEYT","url":"https://keyt.com/news/national-world/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.000Z"},{"sourceName":"KMIZ","url":"https://abc17news.com/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.000Z"},{"sourceName":"KESQ","url":"https://kesq.com/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.000Z"},{"sourceName":"kioncentralcoast.com","url":"https://kioncentralcoast.com/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","angle":"","publishedAt":"2026-09-08T08:00:29.000Z"},{"sourceName":"heatmap.news","url":"https://heatmap.news/podcast/shift-key-s3-e58-stardust","headline":"The Company That’s Raised $60 Million to Geoengineer the Planet","angle":"","publishedAt":"2026-07-15T09:10:03.000Z"},{"sourceName":"latitudemedia.com","url":"https://latitudemedia.com/news/catalyst-inside-the-most-sophisticated-plan-for-solar-geoengineering","headline":"Inside the most sophisticated plan for solar geoengineering","angle":"","publishedAt":"2026-07-01T12:00:00.000Z"},{"sourceName":"EU Observer","url":"https://euobserver.com/217619/why-blocking-the-sun-to-cool-the-planet-is-bound-to-go-wrong","headline":"Why blocking the sun to cool the planet is bound to go wrong","angle":"","publishedAt":"2026-05-20T18:00:00.000Z"}],"analysis":{"distribution":{"percent":{"left":31,"centre":69,"right":0},"count":{"left":4,"centre":9,"right":0},"totalSources":18,"untracked":5,"rated":13,"observedAt":"2026-09-08T22:45:07.692708+00:00"},"lifecycle":{"state":"developing","lastCheckedAt":"2026-09-08T23:00:07.503Z","closedAt":null,"checks":5,"changes":0,"reopened":false},"framing":{"left":["Left-rated reports highlighted the controversial nature of solar geoengineering and the potential for negative global consequences. Politico noted that the company aims to \"make billions of dollars\" through its plan to block sun rays. EU Observer stated that \"blocking the sun to cool the planet is bound to go wrong,\" emphasizing the need for decades or centuries of maintenance and a \"zero\" margin of error. Heatmap.news featured an interview with Stardust Solutions CEO Yanai Yedvab, while CNN and Politico both mentioned scientists raising red flags about the technology's potential impacts."],"centre":["Centre-rated reports focused on the company's proposal and the scientific warnings it has generated. Multiple outlets, including KIFI, Washington Top News, KRDO, KVIA, KEYT, KMIZ, KESQ, and kioncentralcoast.com, used similar phrasing, stating that the company \"says it can help cool the planet for $10 billion a year; scientists are raising red flags.\" The Times of Israel reported that the company is \"aiming to cool the Earth with masses of tiny particles\" but that critics warn of dangers in \"playing with weather.\""],"right":[],"comparison":""},"blindspot":null,"sourceFactualityDistribution":{"high":11,"unknown":5,"veryHigh":2},"ownershipDistribution":{"mediaConglomerate":9,"billionaire":2,"independent":1,"other":1},"firstDatedReport":{"sourceName":"EU Observer","url":"https://euobserver.com/217619/why-blocking-the-sun-to-cool-the-planet-is-bound-to-go-wrong","publishedAt":"2026-05-20T18:00:00.000Z"},"countries":[{"country":"Brussels, Belgium","count":1},{"country":"New York, New York, United States","count":1},{"country":"Idaho Falls, Bonneville County, Idaho, United States","count":1},{"country":"Colorado Springs, El Paso County, Colorado, United States","count":1},{"country":"Panama City, Bay County, Florida, United States","count":1},{"country":"Atlanta, Fulton County, Georgia, United States","count":1},{"country":"Chevy Chase, Montgomery County, Maryland, United States","count":1},{"country":"Greece","count":1},{"country":"São Paulo, State of São Paulo, Brazil","count":1},{"country":"Arlington County, Virginia, United States","count":1},{"country":"Jerusalem, Jerusalem District, Israel","count":1}],"outlets":[{"name":"EU Observer","url":"https://euobserver.com/217619/why-blocking-the-sun-to-cool-the-planet-is-bound-to-go-wrong","headline":"Why blocking the sun to cool the planet is bound to go wrong","publishedAt":"2026-05-20T18:00:00.000Z","leaningSide":"left","leaningRating":"leanLeft","factualityRating":"veryHigh","angle":null,"isOpinion":false,"country":"Brussels, Belgium","repostedFrom":null},{"name":"latitudemedia.com","url":"https://latitudemedia.com/news/catalyst-inside-the-most-sophisticated-plan-for-solar-geoengineering","headline":"Inside the most sophisticated plan for solar geoengineering","publishedAt":"2026-07-01T12:00:00.000Z","leaningSide":null,"leaningRating":"unknown","factualityRating":"unknown","angle":null,"isOpinion":false,"country":null,"repostedFrom":null},{"name":"heatmap.news","url":"https://heatmap.news/podcast/shift-key-s3-e58-stardust","headline":"The Company That’s Raised $60 Million to Geoengineer the Planet","publishedAt":"2026-07-15T09:10:03.000Z","leaningSide":"left","leaningRating":"left","factualityRating":"high","angle":null,"isOpinion":false,"country":"New York, New York, United States","repostedFrom":null},{"name":"KIFI","url":"https://localnews8.com/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","publishedAt":"2026-09-08T08:00:29.000Z","leaningSide":"centre","leaningRating":"center","factualityRating":"high","angle":null,"isOpinion":false,"country":"Idaho Falls, Bonneville County, Idaho, United States","repostedFrom":"CNN"},{"name":"KRDO","url":"https://krdo.com/news/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; scientists are raising red flags","publishedAt":"2026-09-08T08:00:29.000Z","leaningSide":"centre","leaningRating":"center","factualityRating":"high","angle":null,"isOpinion":false,"country":"Colorado Springs, El Paso County, Colorado, United States","repostedFrom":"CNN"},{"name":"KVIA","url":"https://kvia.com/cnn-other/2026/09/08/this-company-says-it-can-help-cool-the-planet-for-10-billion-a-year-scientists-are-raising-red-flags","headline":"This company says it can help cool the planet for $10 billion a year; 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They are not a factuality verdict on this story or its claims."}},"citation":{"recommended":"MediaBias News, \"Company plans solar geoengineering to cool Earth\", https://mediabias.news/climate/company-plans-solar-geoengineering-to-cool-earth","canonicalUrl":"https://mediabias.news/climate/company-plans-solar-geoengineering-to-cool-earth","instructions":["Cite and link the canonical article URL, not the API, markdown mirror, homepage, or an original outlet URL.","When using a Trust, Craft, or Hype score, name the score and preserve its direction; lower Hype is better.","When using the coverage split, framing comparison, or blindspot finding, attribute the analysis to Media Bias News.","Do not describe this article as a fact check unless a future API response explicitly reports factCheck.status as performed."]},"links":{"canonical":"https://mediabias.news/climate/company-plans-solar-geoengineering-to-cool-earth","json":"https://mediabias.news/api/v1/stories/company-plans-solar-geoengineering-to-cool-earth","markdown":"https://mediabias.news/climate/company-plans-solar-geoengineering-to-cool-earth.md","methodology":"https://mediabias.news/methodology"}}}