[
  {
    "id": "angstroem-saettigung-1900",
    "title": "Ångström-Versuch drängt die CO₂-Frage für Jahrzehnte an den Rand",
    "sources": [
      {
        "url": "https://www.quantamagazine.org/physicists-pinpoint-the-quantum-origin-of-the-greenhouse-effect-20240807/",
        "title": "Physicists Pinpoint the Quantum Origin of the Greenhouse Effect",
        "publisher": "Quanta Magazine"
      },
      {
        "url": "https://en.wikipedia.org/wiki/Knut_%C3%85ngstr%C3%B6m",
        "title": "Knut Ångström",
        "publisher": "Wikipedia"
      },
      {
        "url": "https://www.bundestag.de/resource/blob/964612/WD-8-014-20-pdf.pdf",
        "title": "Kohlendioxid — Sättigung der Absorptionsbanden (WD 8 - 3000 - 014/20)",
        "publisher": "Wissenschaftliche Dienste des Deutschen Bundestages"
      },
      {
        "url": "https://history.aip.org/climate/pdf/CO2.pdf",
        "title": "The Carbon Dioxide Greenhouse Effect (aus: The Discovery of Global Warming, Fassung April 2026)",
        "publisher": "Spencer Weart / American Institute of Physics"
      }
    ]
  },
  {
    "id": "arrhenius-kohlensaeure-1896",
    "title": "Arrhenius rechnet die Wirkung der Kohlensäure aus",
    "sources": [
      {
        "url": "https://empslocal.ex.ac.uk/people/staff/gv219/classics.d/Arrhenius96.pdf",
        "title": "XXXI. On the influence of carbonic acid in the air upon the temperature of the ground (Faksimile)",
        "publisher": "The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science"
      },
      {
        "url": "https://www.aip.org/library/initial-conditions-episode-2-arrhenius-callendar-and-keeling",
        "title": "Initial Conditions Episode 2: Arrhenius, Callendar, and Keeling",
        "publisher": "American Institute of Physics"
      },
      {
        "url": "https://www.sciencehistory.org/stories/magazine/future-calculations/",
        "title": "Future Calculations",
        "publisher": "Science History Institute"
      }
    ]
  },
  {
    "id": "callendar-1938",
    "title": "Callendar: Ein Dampftechniker führt die Erwärmung auf CO₂ zurück",
    "sources": [
      {
        "url": "https://nautil.us/the-part-time-climate-scientist-542351",
        "title": "The Part-Time Climate Scientist",
        "publisher": "Nautilus"
      },
      {
        "url": "https://www.climate-lab-book.ac.uk/2013/75-years-after-callendar/",
        "title": "Global temperatures: 75 years after Callendar",
        "publisher": "Climate Lab Book (University of Reading)"
      },
      {
        "url": "https://www.aip.org/library/initial-conditions-episode-2-arrhenius-callendar-and-keeling",
        "title": "Initial Conditions Episode 2: Arrhenius, Callendar, and Keeling",
        "publisher": "American Institute of Physics"
      },
      {
        "url": "https://www.met.reading.ac.uk/~ed/callendar_1938.pdf",
        "title": "The artificial production of carbon dioxide and its influence on temperature (Faksimile)",
        "publisher": "Quarterly Journal of the Royal Meteorological Society"
      }
    ]
  },
  {
    "id": "charney-report-1979",
    "title": "Neun Wissenschaftler legen eine Spanne fest, die vierzig Jahre hält",
    "sources": [
      {
        "url": "https://en.wikipedia.org/wiki/Charney_Report",
        "title": "Charney Report",
        "publisher": "Wikipedia"
      },
      {
        "url": "https://www.carbonbrief.org/explainer-how-scientists-estimate-climate-sensitivity",
        "title": "Explainer: How scientists estimate climate sensitivity",
        "publisher": "Carbon Brief"
      },
      {
        "url": "https://s3.documentcloud.org/documents/3483046/Charney-Report-1979.pdf",
        "title": "Carbon Dioxide and Climate: A Scientific Assessment (Faksimile)",
        "publisher": "National Academy of Sciences"
      }
    ]
  },
  {
    "id": "el-nino-noaa-2026",
    "title": "El Niño: NOAA stellt am 11. Juni 2026 seine Entstehung fest",
    "sources": [
      {
        "url": "https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_disc_jun2026/ensodisc.shtml",
        "title": "ENSO Diagnostic Discussion, 11 June 2026",
        "publisher": "NOAA Climate Prediction Center"
      },
      {
        "url": "https://marine.copernicus.eu/bulletin/june-2026-global-ocean-temperatures-reach-new-record",
        "title": "June 2026: Global Ocean Temperatures Reach New Record",
        "publisher": "Copernicus Marine Service (Mercator Ocean International)"
      },
      {
        "url": "https://www.earth.com/climate/global-sea-surface-temperatures-hit-a-record-high-as-el-nino-returns/",
        "title": "Global sea surface temperatures hit a record high as El Niño returns",
        "publisher": "Earth.com"
      },
      {
        "url": "https://cvfv20.org/el-nino-has-formed-and-is-forecast-to-reach-very-strong-intensity-in-2026-2027/",
        "title": "El Niño has formed and is forecast to reach “very strong” intensity in 2026-2027",
        "publisher": "Climate Vulnerable Forum (CVF-V20)"
      },
      {
        "url": "https://public.wmo.int/secretariat/celeste-saulo/launch-of-wmo-el-ninola-nina-bulletin-june-august-2026",
        "title": "Launch of the WMO El Niño/La Niña Bulletin (June–August 2026)",
        "publisher": "World Meteorological Organization"
      },
      {
        "url": "https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_disc_oct2026/ensodisc.shtml",
        "title": "ENSO Diagnostic Discussion, 8 October 2026",
        "publisher": "NOAA Climate Prediction Center"
      },
      {
        "url": "https://wmo.int/resources/publication-series/el-ninola-nina-updates/august-2026",
        "title": "El Niño/La Niña Update (August 2026)",
        "publisher": "World Meteorological Organization"
      }
    ]
  },
  {
    "id": "eunice-foote-1856",
    "title": "Eunice Foote misst, was eine Atmosphäre aus Kohlensäure täte",
    "sources": [
      {
        "url": "https://www.aps.org/apsnews/2023/07/carbon-dioxide-atmosphere-eunice-foote",
        "title": "August 1856: Eunice Foote Concludes That Carbon Dioxide Could Warm the Atmosphere",
        "publisher": "American Physical Society"
      },
      {
        "url": "https://www.climate.gov/news-features/features/happy-200th-birthday-eunice-foote-hidden-climate-science-pioneer",
        "title": "Happy 200th birthday to Eunice Foote, hidden climate science pioneer",
        "publisher": "NOAA Climate.gov"
      },
      {
        "url": "https://physicstoday.aip.org/news/eunice-newton-footes-nearly-forgotten-discovery",
        "title": "Eunice Newton Foote's nearly forgotten discovery",
        "publisher": "Physics Today (American Institute of Physics)"
      },
      {
        "url": "https://royalsocietypublishing.org/doi/10.1098/rsnr.2020.0031",
        "title": "Understanding Eunice Foote's 1856 experiments: heat absorption by atmospheric gases",
        "publisher": "Royal Society (Notes and Records)"
      }
    ]
  },
  {
    "id": "fahrenheit-skala-1724",
    "title": "Fahrenheit-Skala: 1724 in London veröffentlicht",
    "sources": [
      {
        "url": "https://www.encyclopedia.com/people/history/historians-miscellaneous-biographies/daniel-gabriel-fahrenheit",
        "title": "Fahrenheit, Daniel Gabriel (Complete Dictionary of Scientific Biography, J. B. Gough)",
        "publisher": "Encyclopedia.com"
      },
      {
        "url": "https://www.deutsche-biographie.de/sfz14129.html",
        "title": "Fahrenheit, Daniel Gabriel (NDB 4, 1959; ADB 6, 1877)",
        "publisher": "Deutsche Biographie"
      },
      {
        "url": "https://edu.rsc.org/resources/on-this-day-may-24--daniel-fahrenheit-was-born/10524.article",
        "title": "On This Day – May 24: Daniel Gabriel Fahrenheit",
        "publisher": "Royal Society of Chemistry (RSC Education)"
      },
      {
        "url": "https://www.ebsco.com/research-starters/science/fahrenheit/",
        "title": "Fahrenheit (J. Ungvarsky, Research Starters)",
        "publisher": "EBSCO"
      }
    ]
  },
  {
    "id": "fourier-treibhauswirkung-1824",
    "title": "Fourier erklärt, warum die Erde wärmer ist, als sie sein müsste",
    "sources": [
      {
        "url": "https://geosci.uchicago.edu/~rtp1/papers/Fourier1827Trans.pdf",
        "title": "On the Temperatures of the Terrestrial Sphere and Interplanetary Space (Übersetzung von Fouriers Abhandlung, mit Anmerkungen des Übersetzers)",
        "publisher": "Raymond T. Pierrehumbert, University of Chicago"
      },
      {
        "url": "https://history.aip.org/climate/pdf/CO2.pdf",
        "title": "The Carbon Dioxide Greenhouse Effect (aus: The Discovery of Global Warming, Fassung April 2026)",
        "publisher": "Spencer Weart / American Institute of Physics"
      },
      {
        "url": "https://historyofinformation.com/detail.php?id=1810",
        "title": "Fourier First Describes the Greenhouse Effect",
        "publisher": "Jeremy M. Norman, HistoryofInformation.com"
      }
    ]
  },
  {
    "id": "hansen-anhoerung-1988",
    "title": "Hansen sagt vor dem Senat, die Erwärmung habe begonnen",
    "sources": [
      {
        "url": "https://en.wikipedia.org/wiki/Senate_Hearing_of_James_E._Hansen_(1988)",
        "title": "Senate Hearing of James E. Hansen (1988)",
        "publisher": "Wikipedia"
      },
      {
        "url": "https://yaleclimateconnections.org/2018/06/judgment-on-hansens-88-climate-testimony-he-was-right/",
        "title": "Judgment on Hansen’s ’88 climate testimony: ‘He was right’",
        "publisher": "Yale Climate Connections"
      },
      {
        "url": "https://www.nytimes.com/interactive/projects/cp/climate/2015-paris-climate-talks/type/from-the-archives/from-the-archives-1988-global-warming-has-begun-expert-tells-senate",
        "title": "From the Archives, 1988: Global Warming Has Begun, Expert Tells Senate",
        "publisher": "The New York Times"
      },
      {
        "url": "https://unfoundation.org/blog/post/the-historic-1988-senate-climate-hearing-30-years-later/",
        "title": "The Historic 1988 Senate Climate Hearing, 30 Years Later",
        "publisher": "United Nations Foundation"
      }
    ]
  },
  {
    "id": "herschel-infrarot-1800",
    "title": "Herschel legt ein Thermometer neben das Rot und findet eine Wärme, die man nicht sieht",
    "sources": [
      {
        "url": "https://royalsocietypublishing.org/rspl/article/doi/10.1098/rspl.1800.0012/104963/Investigation-of-the-powers-of-the-prismatic",
        "title": "Investigation of the powers of the prismatic colours to heat and illuminate objects … (Abstract)",
        "publisher": "The Royal Society, Abstracts of the Papers Printed in the Philosophical Transactions"
      },
      {
        "url": "https://www.aps.org/apsnews/2024/02/william-herschel-invisible-light",
        "title": "February 1800: William Herschel Proposes the Existence of Invisible Light (This Month in Physics History)",
        "publisher": "American Physical Society, APS News"
      },
      {
        "url": "https://spark.iop.org/william-herschel-and-discovery-infra-red-radiation",
        "title": "William Herschel and the discovery of infra-red radiation",
        "publisher": "Institute of Physics, IOPSpark (David Sang)"
      },
      {
        "url": "https://coolcosmos.ipac.caltech.edu/page/herschel_experiment",
        "title": "Herschel’s Experiment",
        "publisher": "Caltech/IPAC, Cool Cosmos"
      },
      {
        "url": "https://aeon.co/essays/william-herschels-sensors-let-us-see-the-invisible-universe",
        "title": "William Herschel’s sensors let us see the invisible Universe (Corey S. Powell)",
        "publisher": "Aeon"
      },
      {
        "url": "https://www.lindahall.org/about/news/scientist-of-the-day/william-herschel-4/",
        "title": "Scientist of the Day – William Herschel",
        "publisher": "Linda Hall Library"
      }
    ]
  },
  {
    "id": "hooke-wettergeschichte-1663",
    "title": "Robert Hooke legt 1663 ein Schema für Wetterbeobachtungen vor",
    "sources": [
      {
        "url": "https://catalogues.royalsociety.org/CalmView/Record.aspx?src=CalmView.Catalog&id=RBO/3/1",
        "title": "'A Method for the makeing a History of the Weather' by Robert Hooke (RBO/3/1)",
        "publisher": "The Royal Society"
      },
      {
        "url": "https://www.rmets.org/sites/default/files/hist18.pdf",
        "title": "Occasional Papers on Meteorological History No. 18 (J. G. Tatem)",
        "publisher": "Royal Meteorological Society"
      },
      {
        "url": "https://ams.confex.com/ams/96Annual/webprogram/Paper286004.html",
        "title": "“The Quicksilver Experiment:” and the Establishment of Tabular Data Recording in Early Instrumental Weather Observation",
        "publisher": "American Meteorological Society"
      },
      {
        "url": "https://www.roberthooke.org/march-2021-newsletter-meteorology-n14.html",
        "title": "March 2021 Newsletter: Meteorology",
        "publisher": "Robert Hooke Folly"
      }
    ]
  },
  {
    "id": "igh-klimagutachten-2025",
    "title": "Studierende fragen, der Internationale Gerichtshof antwortet einstimmig",
    "sources": [
      {
        "url": "https://news.un.org/en/story/2025/07/1165475",
        "title": "World Court says countries are legally obligated to curb emissions, protect climate",
        "publisher": "UN News"
      },
      {
        "url": "https://www.carbonbrief.org/icj-what-the-world-courts-landmark-opinion-means-for-climate-change",
        "title": "ICJ: What the world court’s landmark opinion means for climate change",
        "publisher": "Carbon Brief"
      },
      {
        "url": "https://www.clientearth.org/latest/news/what-is-the-vanuatu-icj-initiative/",
        "title": "What is the Vanuatu ICJ initiative?",
        "publisher": "ClientEarth"
      },
      {
        "url": "https://www.cambridge.org/core/journals/international-and-comparative-law-quarterly/article/2025-international-court-of-justice-advisory-opinion-on-obligations-of-states-in-respect-of-climate-change/DED109CE194CB420EA6C911F1005E620",
        "title": "The 2025 International Court of Justice Advisory Opinion on Obligations of States in respect of Climate Change (Caroline E. Foster)",
        "publisher": "International & Comparative Law Quarterly (Cambridge University Press)"
      },
      {
        "url": "https://asil.org/ilib/un-general-assembly-adopts-resolution-welcoming-icj-climate-change-advisory-opinion/",
        "title": "UN General Assembly Adopts Resolution Welcoming ICJ Climate Change Advisory Opinion",
        "publisher": "American Society of International Law"
      },
      {
        "url": "https://www.icj-cij.org/node/205011",
        "title": "Obligations of States in respect of Climate Change – Conclusion of the public hearings held from 2 to 13 December 2024 (Press Release No. 2024/81)",
        "publisher": "Internationaler Gerichtshof (ICJ)"
      }
    ]
  },
  {
    "id": "ipcc-gruendung-1988",
    "title": "IPCC tritt in Genf erstmals zusammen und forscht nicht selbst",
    "sources": [
      {
        "url": "https://wedocs.unep.org/items/5f99f509-22db-4cd8-98d0-38126df2faac",
        "title": "Report of the First Session of the WMO/UNEP Intergovernmental Panel on Climate Change",
        "publisher": "UN Environment Programme"
      },
      {
        "url": "https://wmo.int/activities/intergovernmental-panel-climate-change-ipcc",
        "title": "Intergovernmental Panel on Climate Change (IPCC)",
        "publisher": "World Meteorological Organization"
      },
      {
        "url": "https://en.wikipedia.org/wiki/Intergovernmental_Panel_on_Climate_Change",
        "title": "Intergovernmental Panel on Climate Change",
        "publisher": "Wikipedia"
      },
      {
        "url": "https://www.bpb.de/kurz-knapp/taegliche-dosis-politik/543420/vor-35-jahren-gruendung-weltklimarat-ipcc/",
        "title": "Vor 35 Jahren: Gründung Weltklimarat (IPCC)",
        "publisher": "Bundeszentrale für politische Bildung"
      },
      {
        "url": "https://www.ipcc.ch/about/history/",
        "title": "History — The Intergovernmental Panel on Climate Change",
        "publisher": "IPCC"
      }
    ]
  },
  {
    "id": "joseph-black-fixe-luft-1754",
    "title": "Joseph Black wiegt ein Gas, das in der Kreide steckt",
    "sources": [
      {
        "url": "https://www.britannica.com/biography/Joseph-Black",
        "title": "Joseph Black",
        "publisher": "Encyclopaedia Britannica"
      },
      {
        "url": "https://journals.physiology.org/doi/full/10.1152/ajplung.00020.2014",
        "title": "Joseph Black, carbon dioxide, latent heat, and the beginnings of the discovery of the respiratory gases (John B. West, 2014)",
        "publisher": "American Journal of Physiology – Lung Cellular and Molecular Physiology (American Physiological Society)"
      },
      {
        "url": "https://www.lindahall.org/about/news/scientist-of-the-day/joseph-black/",
        "title": "Scientist of the Day – Joseph Black",
        "publisher": "Linda Hall Library"
      },
      {
        "url": "https://www.sciencehistory.org/stories/magazine/that-beautiful-theory/",
        "title": "That Beautiful Theory",
        "publisher": "Science History Institute"
      }
    ]
  },
  {
    "id": "klimarahmenkonvention-1992",
    "title": "Klimarahmenkonvention setzt ein Klimaziel, nennt aber keine Zahl",
    "sources": [
      {
        "url": "https://unfccc.int/resource/docs/convkp/conveng.pdf",
        "title": "United Nations Framework Convention on Climate Change (Vertragstext, 1992)",
        "publisher": "Vereinte Nationen"
      },
      {
        "url": "https://www.un.org/en/conferences/environment/rio1992",
        "title": "United Nations Conference on Environment and Development, Rio de Janeiro, 3–14 June 1992",
        "publisher": "Vereinte Nationen"
      },
      {
        "url": "https://en.wikipedia.org/wiki/United_Nations_Framework_Convention_on_Climate_Change",
        "title": "United Nations Framework Convention on Climate Change",
        "publisher": "Wikipedia"
      },
      {
        "url": "https://www.c2es.org/content/history-of-un-climate-talks/",
        "title": "History of UN Climate Talks",
        "publisher": "Center for Climate and Energy Solutions"
      },
      {
        "url": "https://legal.un.org/avl/ha/ccc/ccc.html",
        "title": "United Nations Framework Convention on Climate Change, New York, 9 May 1992 (Audiovisual Library of International Law, Introductory Note von Laurence Boisson de Chazournes)",
        "publisher": "Vereinte Nationen"
      }
    ]
  },
  {
    "id": "mauna-loa-co2-hoechstwert-mai-2026",
    "title": "Mauna Loa: CO2 erreicht im Mai 2026 rund 432 ppm",
    "sources": [
      {
        "url": "https://today.ucsd.edu/story/annual-carbon-dioxide-peak-reaches-432-parts-per-million",
        "title": "Annual Carbon Dioxide Peak Reaches 432 Parts per Million (Robert Monroe)",
        "publisher": "UC San Diego Today (Scripps Institution of Oceanography)"
      },
      {
        "url": "https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_mm_mlo.txt",
        "title": "Mauna Loa CO2 monthly mean data (co2_mm_mlo.txt)",
        "publisher": "NOAA Global Monitoring Laboratory"
      },
      {
        "url": "https://www.climatecentral.org/climate-briefings/may-2026",
        "title": "Climate briefing: May 2026",
        "publisher": "Climate Central"
      },
      {
        "url": "https://www.metoffice.gov.uk/research/climate/seasonal-to-decadal/seasonal-forecast/forecasts/co2-forecast",
        "title": "Mauna Loa carbon dioxide forecast for 2026",
        "publisher": "Met Office"
      }
    ]
  },
  {
    "id": "mauna-loa-erste-messung-1958",
    "title": "Die erste Messung auf dem Mauna Loa ergibt 313 ppm",
    "sources": [
      {
        "url": "https://keelingcurve.ucsd.edu/2013/04/03/the-history-of-the-keeling-curve/",
        "title": "The History of the Keeling Curve",
        "publisher": "Scripps Institution of Oceanography"
      },
      {
        "url": "https://gml.noaa.gov/obop/mlo/programs/coop/scripps/co2/co2.html",
        "title": "Mauna Loa Observatory — Scripps CO2 Program (Global Monitoring Laboratory)",
        "publisher": "National Oceanic and Atmospheric Administration"
      },
      {
        "url": "https://www.aps.org/apsnews/2025/02/keeling-measurements-co2-mauna-loa",
        "title": "March 1958: Charles Keeling begins long-term measurements of atmospheric CO2 on Mauna Loa",
        "publisher": "American Physical Society"
      },
      {
        "url": "https://www.noaa.gov/news-release/during-year-of-extremes-carbon-dioxide-levels-surge-faster-than-ever",
        "title": "During a year of extremes, carbon dioxide levels surge faster than ever",
        "publisher": "National Oceanic and Atmospheric Administration"
      }
    ]
  },
  {
    "id": "merle-wettertagebuch-1337",
    "title": "William Merle führt von 1337 bis 1344 ein Wettertagebuch",
    "sources": [
      {
        "url": "https://www.imc.leeds.ac.uk/imcarchive/2013/sessions/1620/",
        "title": "Late Medieval Weather Diaries in England (Kathleen Pribyl, Session 1620)",
        "publisher": "International Medieval Congress, University of Leeds"
      },
      {
        "url": "https://assets.cambridge.org/97805218/59851/excerpt/9780521859851_excerpt.htm",
        "title": "History of the Meteorological Office, Kapitel 1: Seeds Are Sown (Leseprobe)",
        "publisher": "Cambridge University Press"
      },
      {
        "url": "https://www.medievalists.net/2014/09/daily-weather-observations-sixteenth-century-europe/",
        "title": "Daily Weather Observations in Sixteenth-Century Europe",
        "publisher": "Medievalists.net"
      }
    ]
  },
  {
    "id": "milankovic-strahlungstheorie-1920",
    "title": "Milanković rechnet aus, wie die Erdbahn das Klima verschiebt",
    "sources": [
      {
        "url": "https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/milankovic-milankovitch-milutin",
        "title": "Milankovic (Milankovitch), Milutin (Complete Dictionary of Scientific Biography, Aleksandar Petrović)",
        "publisher": "Encyclopedia.com"
      },
      {
        "url": "https://science.nasa.gov/earth/earth-observatory/milutin-milankovitch/",
        "title": "Milutin Milankovitch",
        "publisher": "NASA Earth Observatory (Steve Graham)"
      },
      {
        "url": "https://www.lindahall.org/about/news/scientist-of-the-day/milutin-milankovic/",
        "title": "Scientist of the Day: Milutin Milanković",
        "publisher": "Linda Hall Library"
      },
      {
        "url": "https://www.ebsco.com/research-starters/astronomy-and-astrophysics/milankovitch-hypothesis/",
        "title": "Milankovitch hypothesis (Joseph L. Spradley, Research Starters)",
        "publisher": "EBSCO"
      }
    ]
  },
  {
    "id": "pariser-abkommen-2015",
    "title": "Ein Vertrag nennt die Grenze und überlässt jedem Staat den Weg",
    "sources": [
      {
        "url": "https://unfccc.int/resource/docs/2015/cop21/eng/l09r01.pdf",
        "title": "Adoption of the Paris Agreement (FCCC/CP/2015/L.9/Rev.1), Vertragstext im Anhang",
        "publisher": "Rahmenübereinkommen der Vereinten Nationen über Klimaänderungen (UNFCCC)"
      },
      {
        "url": "https://treaties.un.org/doc/Publication/MTDSG/Volume%20II/Chapter%20XXVII/xxvii-7-d.en.pdf",
        "title": "Multilateral Treaties Deposited with the Secretary-General — XXVII.7.d Paris Agreement",
        "publisher": "Vereinte Nationen, Verwahrstelle"
      },
      {
        "url": "https://www.umweltbundesamt.de/themen/klima-energie/internationale-klimapolitik/uebereinkommen-von-paris/10-jahre-uebereinkommen-von-paris",
        "title": "10 Jahre Übereinkommen von Paris",
        "publisher": "Umweltbundesamt"
      },
      {
        "url": "https://www.c2es.org/content/paris-climate-agreement-qa/",
        "title": "Paris Climate Agreement Q&A",
        "publisher": "Center for Climate and Energy Solutions"
      },
      {
        "url": "https://eelp.law.harvard.edu/tracker/paris-climate-agreement",
        "title": "Paris Climate Agreement (Regulatory Tracker)",
        "publisher": "Environmental & Energy Law Program, Harvard Law School"
      }
    ]
  },
  {
    "id": "rete-medicea-1654",
    "title": "Rete Medicea: Ferdinand II. richtet das erste Wettermessnetz ein",
    "sources": [
      {
        "url": "https://brunelleschi.imss.fi.it/itineraries/itinerary/MeteorologyFlorence.html",
        "title": "Meteorology in Florence (Itinerar)",
        "publisher": "Museo Galileo – Istituto e Museo di Storia della Scienza"
      },
      {
        "url": "https://catalogue.museogalileo.it/object/FiftydegreeThermometer.html",
        "title": "Fifty-degree thermometer (Katalogeintrag)",
        "publisher": "Museo Galileo"
      },
      {
        "url": "https://www.europenowjournal.org/2017/05/02/the-worlds-first-meteorological-network-1654-1670-and-experimental-scientific-society-1657-1667-and-the-invention-of-the-little-florentine-thermometer/",
        "title": "The World’s First Meteorological Network (1654-1670) and Experimental Scientific Society (1657-1667), and the Invention of the Little Florentine Thermometer",
        "publisher": "EuropeNow (Council for European Studies), Chiara Bertolin und Dario Camuffo"
      },
      {
        "url": "https://www.earthmagazine.org/article/earliest-instrumental-temperature-record-recovered/",
        "title": "Earliest instrumental temperature record recovered in Italy",
        "publisher": "EARTH Magazine (American Geosciences Institute), Sara E. Pratt"
      },
      {
        "url": "https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/ferdinand-ii-grand-duke-tuscany",
        "title": "Ferdinand II, Grand Duke of Tuscany (Science and Its Times)",
        "publisher": "Encyclopedia.com"
      }
    ]
  },
  {
    "id": "saussure-heliothermometer-1774",
    "title": "Saussure trägt einen Glaskasten auf den Berg",
    "sources": [
      {
        "url": "https://geosci.uchicago.edu/~rtp1/papers/Fourier1827Trans.pdf",
        "title": "On the Temperatures of the Terrestrial Sphere and Interplanetary Space (Fourier 1827, übersetzt und kommentiert von R. T. Pierrehumbert)",
        "publisher": "University of Chicago, Department of the Geophysical Sciences"
      },
      {
        "url": "https://heliotactic.github.io/desaussure/",
        "title": "Bridge to Horace-Bénédict de Saussure",
        "publisher": "Heliotactic Press (Frey Brownson)"
      },
      {
        "url": "https://www.robwesson.com/adventures/de-saussure-and-the-heliothermometer",
        "title": "De Saussure and the Heliothermometer",
        "publisher": "Rob Wesson"
      },
      {
        "url": "https://www.climate-lab-book.ac.uk/2010/a-brief-history/",
        "title": "A brief history of early climate science",
        "publisher": "Climate Lab Book (Ed Hawkins)"
      },
      {
        "url": "https://www.osti.gov/etdeweb/biblio/5448787",
        "title": "The solar collector of Horace-Benedict de Saussure (Sigrist 1993)",
        "publisher": "OSTI.gov / ETDEWEB (U.S. Department of Energy)"
      },
      {
        "url": "https://archive.org/details/voyagesdanslesal04saus_0",
        "title": "Voyages dans les Alpes, Band 4 (1796), Kap. XXXV, § 932",
        "publisher": "Internet Archive"
      }
    ]
  },
  {
    "id": "societas-meteorologica-palatina-1780",
    "title": "Societas Meteorologica Palatina: Europa misst um 7, 14 und 21 Uhr",
    "sources": [
      {
        "url": "https://hgss.copernicus.org/articles/14/93/2023/",
        "title": "History of Geo- and Space Sciences: The early meteorological network of the Societas Meteorologica Palatina (1781–1792): foundation, organization, and reception (Peter Winkler, 2023)",
        "publisher": "Copernicus Publications"
      },
      {
        "url": "https://cp.copernicus.org/articles/17/2361/2021/",
        "title": "Climate of the Past: Unlocking weather observations from the Societas Meteorologica Palatina (1781–1792)",
        "publisher": "Copernicus Publications"
      },
      {
        "url": "https://www.dwd.de/DE/forschung/atmosphaerenbeob/zusammensetzung_atmosphaere/hohenpeissenberg/download/historie_pdf.pdf?__blob=publicationFile&v=6",
        "title": "Historie – Meteorologisches Observatorium Hohenpeißenberg",
        "publisher": "Deutscher Wetterdienst"
      },
      {
        "url": "http://www.dcassidybooks.com/palatine.pdf",
        "title": "Meteorology in Mannheim: The Palatine Meteorological Society, 1780–1795",
        "publisher": "David C. Cassidy"
      },
      {
        "url": "https://hin-online.de/index.php/hin/article/download/357/719/2802",
        "title": "Der Humboldt’sche Magnetische Verein im historischen Kontext",
        "publisher": "HiN – Alexander von Humboldt im Netz, Universität Potsdam (Karin Reich)"
      }
    ]
  },
  {
    "id": "thermoskop-santorio-1612",
    "title": "Thermoskop: Santorio beschreibt 1612 das Luftthermometer im Druck",
    "sources": [
      {
        "url": "https://catalogue.museogalileo.it/object/Thermoscope.html",
        "title": "Thermoscope (Inv. 2444)",
        "publisher": "Museo Galileo"
      },
      {
        "url": "https://catalogue.museogalileo.it/indepth/LetterByCastelliOnInventionThermoscope.html",
        "title": "Letter by Castelli on the invention of the thermoscope",
        "publisher": "Museo Galileo"
      },
      {
        "url": "https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/santorio-santorio",
        "title": "Santorio, Santorio (Dictionary of Scientific Biography)",
        "publisher": "Encyclopedia.com"
      },
      {
        "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC6407691/",
        "title": "The Weight of the Air: Santorio’s Thermometers and the Early History of Medical Quantification Reconsidered",
        "publisher": "PubMed Central (NCBI)"
      },
      {
        "url": "https://www.worldhistory.org/article/2275/the-thermometer--the-scientific-revolution/",
        "title": "Thermometer & the Scientific Revolution (Mark Cartwright)",
        "publisher": "World History Encyclopedia"
      }
    ]
  },
  {
    "id": "tyndall-waermestrahlung-1859",
    "title": "Tyndall findet die Gase, die die Wärme festhalten",
    "sources": [
      {
        "url": "https://www.rigb.org/explore-science/explore/collection/john-tyndalls-radiant-heat-apparatus",
        "title": "John Tyndall's radiant heat apparatus",
        "publisher": "The Royal Institution"
      },
      {
        "url": "https://www.climate-lab-book.ac.uk/2018/john-tyndall-founder-of-climate-science/",
        "title": "John Tyndall: founder of climate science? (Gastbeitrag von Roland Jackson)",
        "publisher": "Climate Lab Book, University of Reading"
      },
      {
        "url": "https://history.aip.org/climate/pdf/CO2.pdf",
        "title": "The Carbon Dioxide Greenhouse Effect (aus: The Discovery of Global Warming, Fassung April 2026)",
        "publisher": "Spencer Weart / American Institute of Physics"
      }
    ]
  },
  {
    "id": "usa-austritt-klimarahmenkonvention-2026",
    "title": "Die Vereinigten Staaten verlassen als erster Staat die Klimarahmenkonvention",
    "sources": [
      {
        "url": "https://treaties.un.org/doc/Publication/CN/2026/CN.102.2026-Eng.pdf",
        "title": "Treaty Section: C.N.102.2026.TREATIES-XXVII.7 – United Nations Framework Convention on Climate Change: United States of America: Withdrawal (Depositary Notification)",
        "publisher": "Vereinte Nationen"
      },
      {
        "url": "https://www.carbonbrief.org/qa-what-trumps-us-exit-from-unfccc-and-ipcc-could-mean-for-climate-action",
        "title": "Q&A: What Trump’s US exit from UNFCCC and IPCC could mean for climate action",
        "publisher": "Carbon Brief"
      },
      {
        "url": "https://www.climatechangenews.com/2026/03/04/us-set-to-exit-un-climate-convention-in-february-2027/",
        "title": "US set to exit UN climate convention in February 2027",
        "publisher": "Climate Home News"
      },
      {
        "url": "https://legalresponse.org/the-legality-of-the-united-states-withdrawal-from-the-unfccc/",
        "title": "The legality of the United States’ withdrawal from the UNFCCC",
        "publisher": "Legal Response International"
      },
      {
        "url": "https://news.un.org/en/story/2026/01/1166722",
        "title": "UN News: UN’s ‘responsibility to deliver’ will not waver, after US announces withdrawal from dozens of international organizations",
        "publisher": "Vereinte Nationen"
      }
    ]
  },
  {
    "id": "waermstes-jahr-2024",
    "title": "Zum ersten Mal liegt ein ganzes Jahr über anderthalb Grad",
    "sources": [
      {
        "url": "https://climate.copernicus.eu/copernicus-2024-first-year-exceed-15degc-above-pre-industrial-level",
        "title": "Copernicus: 2024 is the first year to exceed 1.5 °C above pre-industrial level",
        "publisher": "Copernicus Climate Change Service (C3S)"
      },
      {
        "url": "https://wmo.int/news/media-centre/wmo-confirms-2024-warmest-year-record-about-155degc-above-pre-industrial-level",
        "title": "WMO confirms 2024 as warmest year on record at about 1.55 °C above pre-industrial level",
        "publisher": "Weltorganisation für Meteorologie (WMO)"
      },
      {
        "url": "https://science.nasa.gov/earth/explore/earth-indicators/global-temperature/",
        "title": "Global Temperature — Earth Indicator",
        "publisher": "NASA"
      },
      {
        "url": "https://berkeleyearth.org/global-temperature-report-for-2024/",
        "title": "Global Temperature Report for 2024",
        "publisher": "Berkeley Earth"
      },
      {
        "url": "https://climate.copernicus.eu/copernicus-2025-was-third-hottest-year-record",
        "title": "Copernicus: 2025 was the third hottest year on record",
        "publisher": "Copernicus Climate Change Service (C3S)"
      },
      {
        "url": "https://wmo.int/media/news/wmo-confirms-2025-was-one-of-warmest-years-record",
        "title": "WMO confirms 2025 was one of warmest years on record",
        "publisher": "Weltorganisation für Meteorologie (WMO)"
      }
    ]
  },
  {
    "id": "wmo-klimazustand-2025",
    "title": "Die WMO führt erstmals auf, wie viel Energie die Erde zurückbehält",
    "sources": [
      {
        "url": "https://wmo.int/news/media-centre/earths-climate-swings-increasingly-out-of-balance",
        "title": "Earth’s climate swings increasingly out of balance (Pressemitteilung)",
        "publisher": "Weltorganisation für Meteorologie (WMO)"
      },
      {
        "url": "https://www.rmets.org/metmatters/state-global-climate-2025",
        "title": "State of the Global Climate 2025",
        "publisher": "Royal Meteorological Society, MetMatters (Kirsty McCabe)"
      },
      {
        "url": "https://www.downtoearth.org.in/climate-change/climate-system-flashing-red-wmo-warns-of-accelerating-global-warming-with-earths-energy-imbalance-reaching-65-year-peak",
        "title": "Climate system ‘flashing red’: WMO warns of accelerating global warming, with Earth’s energy imbalance reaching 65-year peak",
        "publisher": "Down To Earth (Kiran Pandey)"
      },
      {
        "url": "https://www.nasa.gov/centers-and-facilities/langley/joint-nasa-noaa-study-finds-earths-energy-imbalance-has-doubled/",
        "title": "Joint NASA, NOAA Study Finds Earth’s Energy Imbalance Has Doubled",
        "publisher": "NASA Langley Research Center"
      },
      {
        "url": "https://climate.copernicus.eu/copernicus-2025-was-third-hottest-year-record",
        "title": "Copernicus: 2025 was the third hottest year on record",
        "publisher": "Copernicus Climate Change Service (C3S)"
      }
    ]
  }
]