{
  "id": "greenhouse_gas",
  "name": "Kyoto Protocol greenhouse gas",
  "status": "draft",
  "doc": "Chemical notation of a greenhouse gas or gas group of the Kyoto Protocol basket, used to label emissions in national inventories and emission statistics. Annex A of the Protocol lists CO2, CH4, N2O, HFCs, PFCs and SF6; the Doha Amendment added NF3 for the second commitment period. The regexp accepts plain digits or Unicode subscripts (CO₂) and the singular HFC and PFC. It does not cover single HFC or PFC species or other gases.",
  "categories": [
    {
      "id": "environment",
      "name": "Environment (protected areas, biodiversity, water, weather, emissions, waste)"
    },
    {
      "id": "chemistry",
      "name": "Chemistry"
    }
  ],
  "langs": [
    {
      "id": "common",
      "name": "Common to most languages"
    }
  ],
  "is_pii": false,
  "classification": "categorical",
  "regexp": "^(?:CO[2₂]|CH[4₄]|N[2₂]O|HFCs?|PFCs?|SF[6₆]|NF[3₃])$",
  "examples": [
    {
      "value": "CO2",
      "description": "Carbon dioxide; Kyoto Protocol, Annex A"
    },
    {
      "value": "CH₄",
      "description": "Methane, written with a subscript; Kyoto Protocol, Annex A"
    },
    {
      "value": "HFCs",
      "description": "Hydrofluorocarbons; Kyoto Protocol, Annex A"
    },
    {
      "value": "NF3",
      "description": "Nitrogen trifluoride; added to Annex A by the Doha Amendment"
    },
    {
      "value": "NOx",
      "valid": false,
      "description": "Nitrogen oxides are an air pollutant, not a Kyoto Protocol gas"
    }
  ],
  "links": [
    {
      "type": "doc",
      "url": "https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:22002A0515(01)"
    },
    {
      "type": "doc",
      "url": "https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:22015A0804(01)"
    }
  ],
  "translations": {
    "ru": {
      "name": "Парниковый газ Киотского протокола",
      "doc": "Химическое обозначение парникового газа или группы газов Киотского протокола — CO2, CH4, N2O, ГФУ, ПФУ, SF6 и NF3 (добавлен Дохинской поправкой)."
    }
  },
  "type": "datatype"
}