{"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/global-sea-surface-temperature-hits-record-211c","slug":"global-sea-surface-temperature-hits-record-211c","url":"https://mediabias.news/climate/global-sea-surface-temperature-hits-record-211c","title":"Global Sea Surface Temperature Hits Record 21.1°C","subtitle":"Copernicus Climate Change Service reports new high, surpassing March 2024 record.","excerpt":"The average global sea surface temperature reached a record 21.1°C on August 22, 2026, according to the Copernicus Climate Change Service. This surpasses the previous record set in March 2024 and is attributed to global warming and the El Niño phenomenon.","category":"Climate","area":null,"publishedAt":"2026-08-24T19:45:45.534Z","sourceReportedAt":"2026-08-24T19:17:18.000Z","updatedAt":"2026-08-24T19:45:45.534Z","readTime":"3 min read","scores":{"trust":42,"critic":61,"hype":41,"notes":{"trust":"Central claim attributed to Copernicus, a named body, with two independent outlets corroborating.","critic":"Reporting includes quotes from experts, explains consequences, and names specific data sources.","hype":"Headlines use strong language like 'unprecedented' and 'never before'."}},"tags":["#ClimateChange","#GlobalWarming","#OceanTemperatures","#ElNino","#RecordHigh"],"entities":["Copernicus Climate Change Service","El Niño","Mediterranean Sea","Samantha Burgess","World Meteorological Organization"],"body":[{"type":"key_takeaways","items":["The average global sea surface temperature reached 21.1°C on August 22, 2026.","This new record surpasses the previous high of 21.09°C recorded in March 2024.","Scientists attribute the record temperature to a combination of global warming and the El Niño phenomenon.","The Mediterranean Sea also recorded a summer high of 33.02°C."]},{"type":"paragraph","text":"The average global sea surface temperature reached a record 21.1°C on August 22, 2026, according to the Copernicus Climate Change Service (C3S). This figure surpasses the previous record of 21.09°C, which was set in March 2024. The C3S reported that global ocean temperatures typically peak in March or April, making the August record unusual. This new high follows a series of monthly sea surface temperature records observed throughout 2026, indicating persistent warming."},{"type":"paragraph","text":"Scientists attribute this record temperature to the combined effects of ongoing global warming and the El Niño phenomenon. The World Meteorological Organization anticipates El Niño will strengthen in the coming months. The Mediterranean Sea also experienced a record high this summer, reaching 33.02°C."},{"type":"heading","text":"Disagreement on previous record"},{"type":"paragraph","text":"While the Copernicus Climate Change Service reported the previous record was 21.09°C in March 2024, one report stated the previous high was 21.09°C in March 2024, and another mentioned a previous record of 20.98°C in 2023. One digest also noted the previous high was recorded in 2024."},{"type":"heading","text":"What the coverage left out"},{"type":"paragraph","text":"None of the digests mention the specific figure of 33.02°C for the Mediterranean Sea's record high temperature, which was only detailed in the full report from Eldiario.es."}],"basedOn":[{"sourceName":"Staten Island Advance","url":"https://silive.com/nation/2026/08/something-unusual-is-happening-beneath-the-oceans-surface-and-scientists-are-alarmed.html","headline":"Earth’s oceans reach a milestone scientists say may be unprecedented in millennia","angle":"","publishedAt":"2026-08-24T19:17:18.000Z"},{"sourceName":"Cleveland","url":"https://cleveland.com/news/2026/08/something-unusual-is-happening-beneath-the-oceans-surface-and-scientists-are-alarmed.html","headline":"Earth’s oceans reach a milestone scientists say may be unprecedented in millennia","angle":"","publishedAt":"2026-08-24T19:17:18.000Z"},{"sourceName":"Spiegel","url":"https://spiegel.de/wissenschaft/copernicus-messung-weltmeere-mit-21-1-grad-celsius-so-warm-wie-nie-a-fc8784fd-0aa0-487f-8e43-98e3c7dfadd4","headline":"Copernicus Measurement: World Seas with 21.1 Degrees Celsius as Warm as Never Before","angle":"","publishedAt":"2026-08-24T18:32:00.000Z"},{"sourceName":"Gazeta.ua","url":"https://gazeta.ua/articles/edu-and-science/_svitovij-okean-nagrivsya-do-rekordnih-211-c-vcheni-poperedzhayut-pro-zagrozu-dlya-planeti/1257253","headline":"World Ocean Warms to Record 21.1°C: Scientists Warn of Threat to Planet","angle":"","publishedAt":"2026-08-24T18:27:34.000Z"},{"sourceName":"Live Science","url":"https://livescience.com/planet-earth/climate-change/ocean-under-unprecedented-strain-as-el-nino-helps-supercharge-warming-to-record-levels","headline":"Ocean 'under unprecedented strain' as El Niño helps supercharge warming to record levels","angle":"","publishedAt":"2026-08-24T18:25:02.000Z"},{"sourceName":"Le Huffington Post","url":"https://huffingtonpost.fr/environnement/article/la-temperature-moyenne-journaliere-des-oceans-atteint-un-nouveau-record-la-responsabilite-d-el-nino-pointee_311258.html","headline":"The Oceans No Longer End up Heating and Are Beating a New Sad Temperature Record","angle":"","publishedAt":"2026-08-24T17:58:05.000Z"},{"sourceName":"Rzeczpospolita","url":"https://klimat.rp.pl/klimat/art45046821-temperatura-morz-i-oceanow-najwyzsza-w-historii-skutki-dosiegna-tez-polske","headline":"Sea and Ocean Temperatures Are at Their Highest Point in History. The Effects Will Also Reach Poland.","angle":"","publishedAt":"2026-08-24T17:27:44.000Z"},{"sourceName":"El Economista","url":"https://eleconomista.com.mx/internacionales/temperatura-media-diaria-superficie-mar-registra-nuevo-record-21-1-grados-celsius-20260824-829879.html","headline":"The Average Daily Temperature of the Sea Surface Records a New Record of 21.1 Degrees Celsius","angle":"","publishedAt":"2026-08-24T17:18:40.000Z"},{"sourceName":"Stéphane Larue","url":"https://stephanelarue.com/rechauffement-climatique-les-oceans-atteignent-un-record-absolu-a-211-c","headline":"Climate Warming: the Oceans Reach an Absolute Record at 21.1°C","angle":"","publishedAt":"2026-08-24T17:10:43.000Z"},{"sourceName":"www.cnews.fr","url":"https://cnews.fr/environnement/2026-08-24/les-oceans-ont-atteint-une-temperature-record-ce-week-end-1908861","headline":"The Oceans Have Reached a Record Temperature This Weekend","angle":"","publishedAt":"2026-08-24T16:39:19.360Z"},{"sourceName":"rtl.lu","url":"https://rtl.lu/news/international/mierer-uechter-dwelt-esou-waarm-wei-nach-ni-2071123118","headline":"Copernicus Warns Viru Risks: Mierer Uechter d'Welt Esou Waarm Wéi Nach Ni","angle":"","publishedAt":"2026-08-24T16:36:38.916Z"},{"sourceName":"Sapo","url":"https://jornaleconomico.sapo.pt/noticias/temperatura-dos-oceanos-registou-recorde-absoluto-de-211-oc-no-sabado-segundo-copernicus","headline":"Ocean Temperature Recorded an Absolute Record of 21.1 oC on Saturday, According to Copernicus.","angle":"","publishedAt":"2026-08-24T16:29:00.000Z"},{"sourceName":"BBC News","url":"https://bbc.com/news/articles/c62m4gpnp78o","headline":"World's oceans hit highest temperature on record as El Niño grows","angle":"","publishedAt":"2026-08-24T16:27:28.821Z"},{"sourceName":"Le Grand Continent","url":"https://legrandcontinent.eu/fr/2026/08/24/les-oceans-ont-atteint-leur-temperature-la-plus-elevee-jamais-enregistree","headline":"The Oceans Have Reached Their Highest Temperature","angle":"","publishedAt":"2026-08-24T16:06:50.000Z"},{"sourceName":"pmo.ee","url":"https://pmo.ee/8533345","headline":"EL NIÑO INFLUENCE ⟩ New Record Surface Temperature Measured in the World's Oceans","angle":"","publishedAt":"2026-08-24T15:56:51.000Z"},{"sourceName":"Hot News","url":"https://hotnews.ro/oceanele-lumii-au-inregistrat-un-record-zilnic-absolut-de-caldura-de-ce-este-neobisnuita-o-astfel-de-temperatura-acum-2332176","headline":"The World's Oceans Have Recorded an Absolute Daily Record of Heat. 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