{
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  "Type": "Package",
  "Package": "gleam",
  "Title": "Global Livestock Environmental Assessment Model (GLEAM-X)",
  "Version": "0.8.0",
  "Authors@R": "c(\nperson(given = \"Ahmed\",\nfamily = \"Jou\",\nemail = \"ahmed@applitics.fr\",\nrole = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0009-0002-2309-4583\",\n\"https://applitics.fr\")),\nperson(given = \"Yassine\",\nfamily = \"Elaouni\",\nemail = \"yassine@applitics.fr\",\nrole = c(\"aut\"),\ncomment = \"https://applitics.fr\"),\nperson(given = \"Dominik\",\nfamily = \"Wisser\",\nemail = \"dominik.wisser@fao.org\",\nrole = c(\"aut\"),\ncomment = c(ORCID = \"0000-0001-8368-3801\",\n\"GLEAM team lead, FAO\")),\nperson(given = \"Lydia\",\nfamily = \"Lanzoni\",\nemail = \"lydia.lanzoni@fao.org\",\nrole = c(\"aut\"),\ncomment = c(ORCID = \"0000-0002-4488-4368\",\n\"Livestock and climate change specialist, FAO\")),\nperson(given = \"Giuseppe\",\nfamily = \"Tempio\",\nemail = \"giuseppe.tempio@fao.org\",\nrole = c(\"aut\"),\ncomment = c(ORCID = \"0009-0004-2272-0794\",\n\"Livestock environmental impact analyst, FAO\")),\nperson(given = \"Phyllis\",\nfamily = \"Ndungu'\",\nemail = \"Phyllis.Ndungu@fao.org\",\nrole = c(\"ctb\"),\ncomment = \"Livestock and climate change specialist, FAO\"),\nperson(given = \"Yushan\",\nfamily = \"Li\",\nemail = \"Yushan.Li@fao.org\",\nrole = c(\"ctb\"),\ncomment = \"Livestock and sustainability specialist, FAO\"),\nperson(given = \"Manling\",\nfamily = \"Xu\",\nemail = \"Manling.Xu@fao.org\",\nrole = c(\"ctb\"),\ncomment = \"Livestock data intern, FAO\"),\nperson(given = \"Zixin\",\nfamily = \"Wang\",\nemail = \"Zixin.Wang@fao.org\",\nrole = c(\"ctb\"),\ncomment = \"Livestock data intern, FAO\"),\nperson(given = \"Narindra\",\nfamily = \"Rakotovao\",\nemail = \"Narindra.Rakotovao@fao.org\",\nrole = c(\"ctb\"),\ncomment = \"Livestock policy officer, FAO\"),\nperson(given = \"Stewart\",\nfamily = \"Chikoloma\",\nemail = \"Stewart.Chikomola@fao.org\",\nrole = c(\"ctb\"),\ncomment= \"Livestock data specialist, FAO\"),\nperson(given = \"David\",\nfamily = \"OBrien\",\nemail = \"david@applitics.fr\",\nrole = c(\"ctb\"),\ncomment = c(ORCID = \"0009-0007-0339-0517\",\n\"https://applitics.fr\")),\nperson(given = \"Food and Agriculture Organization of the United Nations\",\nfamily = \"FAO\",\nrole = c(\"cph\"),\ncomment = \"Original GLEAM model framework\"),\nperson(given = \"Federal Ministry of Agriculture, Food and Regional Identity of Germany\",\nfamily = \"BMELH\",\nrole = c( \"fnd\"),\ncomment = \"Funding support\"))",
  "Description": "GLEAM-X is the official R implementation of FAO’s Global\nLivestock Environmental Assessment Model (GLEAM). The package\nprovides a modular, transparent framework for simulating\nlivestock production systems and quantifying their\nenvironmental impacts.",
  "License": "AGPL-3",
  "URL": "https://github.com/un-fao/GLEAM/, https://www.fao.org/gleam/en/",
  "BugReports": "https://github.com/un-fao/GLEAM/issues",
  "Encoding": "UTF-8",
  "Roxygen": "list(markdown = TRUE)",
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  "VignetteBuilder": "knitr",
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  "Repository": "https://un-fao.r-universe.dev",
  "Date/Publication": "2026-05-14 15:43:03 UTC",
  "RemoteUrl": "https://github.com/un-fao/gleam",
  "RemoteRef": "HEAD",
  "RemoteSha": "90e416197e89093c4f3a347b263ba805d33d4aac",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-05-17 09:52:53 UTC",
    "User": "root"
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  "Author": "Ahmed Jou [aut, cre] (ORCID: <https://orcid.org/0009-0002-2309-4583>,\nhttps://applitics.fr),\nYassine Elaouni [aut] (https://applitics.fr),\nDominik Wisser [aut] (ORCID: <https://orcid.org/0000-0001-8368-3801>,\nGLEAM team lead, FAO),\nLydia Lanzoni [aut] (ORCID: <https://orcid.org/0000-0002-4488-4368>,\nLivestock and climate change specialist, FAO),\nGiuseppe Tempio [aut] (ORCID: <https://orcid.org/0009-0004-2272-0794>,\nLivestock environmental impact analyst, FAO),\nPhyllis Ndungu' [ctb] (Livestock and climate change specialist, FAO),\nYushan Li [ctb] (Livestock and sustainability specialist, FAO),\nManling Xu [ctb] (Livestock data intern, FAO),\nZixin Wang [ctb] (Livestock data intern, FAO),\nNarindra Rakotovao [ctb] (Livestock policy officer, FAO),\nStewart Chikoloma [ctb] (Livestock data specialist, FAO),\nDavid OBrien [ctb] (ORCID: <https://orcid.org/0009-0007-0339-0517>,\nhttps://applitics.fr),\nFood and Agriculture Organization of the United Nations FAO [cph]\n(Original GLEAM model framework),\nFederal Ministry of Agriculture, Food and Regional Identity of Germany\nBMELH [fnd] (Funding support)",
  "Maintainer": "Ahmed Jou <ahmed@applitics.fr>",
  "MD5sum": "d0d920cac86d96e44008908aab67dfb3",
  "_user": "un-fao",
  "_type": "src",
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  "_created": "2026-05-17T09:52:53.000Z",
  "_published": "2026-06-02T16:57:29.873Z",
  "_distro": "noble",
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  "_maintainer": {
    "name": "Ahmed Jou",
    "email": "ahmed@applitics.fr",
    "login": "ahmedjoubest",
    "description": "Physicist in full conversion to data science",
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  "_devurl": "https://github.com/un-fao/gleam",
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  "_rbuild": "4.6.0",
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    "extra/citation.html",
    "extra/citation.json",
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    "extra/NEWS.html",
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  "_homeurl": "https://github.com/un-fao/gleam",
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  "_cranurl": true,
  "_releases": [
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  ],
  "_exports": [
    "assign_allocation_shares",
    "calc_allocated_emissions",
    "calc_allocation_shares",
    "calc_avg_weights",
    "calc_ch4_enteric",
    "calc_ch4_manure",
    "calc_ch4_ration_rice",
    "calc_co2_ration_crop_activities",
    "calc_co2_ration_fertilizer",
    "calc_co2_ration_luc_nopeat",
    "calc_co2_ration_luc_peat",
    "calc_co2_ration_pesticides",
    "calc_co2eq",
    "calc_cohort_to_herd_aggregation",
    "calc_cohort_totals",
    "calc_cohort_weights",
    "calc_conversion_factor_ym",
    "calc_daily_weight_gain",
    "calc_fecundity_rates",
    "calc_feed_digestibility_fraction",
    "calc_fibre_allocation_energy",
    "calc_fibre_production",
    "calc_meat_allocation_energy",
    "calc_meat_production",
    "calc_metabolic_energy_req_activity",
    "calc_metabolic_energy_req_fibre",
    "calc_metabolic_energy_req_growth",
    "calc_metabolic_energy_req_lactation",
    "calc_metabolic_energy_req_maintenance",
    "calc_metabolic_energy_req_pregnancy",
    "calc_metabolic_energy_req_work",
    "calc_milk_allocation_energy",
    "calc_milk_production",
    "calc_n2o_manure_direct",
    "calc_n2o_manure_leaching",
    "calc_n2o_manure_total",
    "calc_n2o_manure_volatilization",
    "calc_n2o_ration_crop_residues",
    "calc_n2o_ration_fertilizer",
    "calc_n2o_ration_manure",
    "calc_nitrogen_excretion",
    "calc_nitrogen_intake",
    "calc_nitrogen_retention",
    "calc_projected_population_size",
    "calc_ration_ash",
    "calc_ration_digestibility",
    "calc_ration_gross_energy",
    "calc_ration_intake",
    "calc_ration_metabolizable_energy",
    "calc_ration_nitrogen_content",
    "calc_ration_urinary_energy_fraction",
    "calc_reg_growth",
    "calc_rem_maintenance",
    "calc_steady_state_structure",
    "calc_summary_offtake",
    "calc_total_metabolic_energy_req",
    "calc_transition_probabilities",
    "calc_volatile_solids",
    "calc_work_allocation_energy",
    "run_aggregation_module",
    "run_allocation_module",
    "run_demographic_herd_module",
    "run_emissions_enteric_module",
    "run_emissions_manure_module",
    "run_emissions_ration_module",
    "run_gleam",
    "run_metabolic_energy_req_module",
    "run_nitrogen_balance_module",
    "run_production_module",
    "run_ration_quality_module",
    "run_weights_module"
  ],
  "_help": [
    {
      "page": "assign_allocation_shares",
      "title": "Assign allocation shares to emission variables by commodity",
      "topics": [
        "assign_allocation_shares"
      ]
    },
    {
      "page": "calc_allocated_emissions",
      "title": "Calculate allocated greenhouse gas emissions (GHG)",
      "topics": [
        "calc_allocated_emissions"
      ]
    },
    {
      "page": "calc_allocation_shares",
      "title": "Calculate allocation shares for livestock commodities",
      "topics": [
        "calc_allocation_shares"
      ]
    },
    {
      "page": "calc_avg_weights",
      "title": "Calculate average and final live weights by cohort",
      "topics": [
        "calc_avg_weights"
      ]
    },
    {
      "page": "calc_ch4_enteric",
      "title": "Calculate daily enteric methane emissions",
      "topics": [
        "calc_ch4_enteric"
      ]
    },
    {
      "page": "calc_ch4_manure",
      "title": "Calculate methane (CH4) emissions from manure management systems",
      "topics": [
        "calc_ch4_manure"
      ]
    },
    {
      "page": "calc_ch4_ration_rice",
      "title": "Calculate a ration component's contribution to methane (CH4) emissions from rice cultivation",
      "topics": [
        "calc_ch4_ration_rice"
      ]
    },
    {
      "page": "calc_co2_ration_crop_activities",
      "title": "Calculate a ration component's contribution to carbon dioxide (CO2) emissions from on-field agricultural activities",
      "topics": [
        "calc_co2_ration_crop_activities"
      ]
    },
    {
      "page": "calc_co2_ration_fertilizer",
      "title": "Calculate a ration component's contribution to carbon dioxide (CO2) emissions from fertilizer manufacture",
      "topics": [
        "calc_co2_ration_fertilizer"
      ]
    },
    {
      "page": "calc_co2_ration_luc_nopeat",
      "title": "Calculate a ration component's contribution to carbon dioxide (CO2) emissions from land-use change (excluding peatland drainage)",
      "topics": [
        "calc_co2_ration_luc_nopeat"
      ]
    },
    {
      "page": "calc_co2_ration_luc_peat",
      "title": "Calculate a ration component's contribution to carbon dioxide (CO2) emissions from peatland drainage",
      "topics": [
        "calc_co2_ration_luc_peat"
      ]
    },
    {
      "page": "calc_co2_ration_pesticides",
      "title": "Calculate a ration component's contribution to carbon dioxide (CO2) emissions from pesticide manufacture",
      "topics": [
        "calc_co2_ration_pesticides"
      ]
    },
    {
      "page": "calc_co2eq",
      "title": "Convert methane (CH4) and nitrous oxide (N2O) emissions to CO2-equivalents (CO2eq) using Global Warming Potentials (GWP) factors",
      "topics": [
        "calc_co2eq"
      ]
    },
    {
      "page": "calc_cohort_to_herd_aggregation",
      "title": "Aggregate cohort-level to herd-level data",
      "topics": [
        "calc_cohort_to_herd_aggregation"
      ]
    },
    {
      "page": "calc_cohort_totals",
      "title": "Calculate totals by cohort",
      "topics": [
        "calc_cohort_totals"
      ]
    },
    {
      "page": "calc_cohort_weights",
      "title": "Calculate live weights by cohort and life stage",
      "topics": [
        "calc_cohort_weights"
      ]
    },
    {
      "page": "calc_conversion_factor_ym",
      "title": "Calculate methane conversion factor (ym)",
      "topics": [
        "calc_conversion_factor_ym"
      ]
    },
    {
      "page": "calc_daily_weight_gain",
      "title": "Calculate daily weight gain by cohort",
      "topics": [
        "calc_daily_weight_gain"
      ]
    },
    {
      "page": "calc_fecundity_rates",
      "title": "Calculate daily fecundity rates",
      "topics": [
        "calc_fecundity_rates"
      ]
    },
    {
      "page": "calc_feed_digestibility_fraction",
      "title": "Calculate feed digestibility fraction",
      "topics": [
        "calc_feed_digestibility_fraction"
      ]
    },
    {
      "page": "calc_fibre_allocation_energy",
      "title": "Calculate fibre energy requirements (for biophysical allocation)",
      "topics": [
        "calc_fibre_allocation_energy"
      ]
    },
    {
      "page": "calc_fibre_production",
      "title": "Calculate fibre production",
      "topics": [
        "calc_fibre_production"
      ]
    },
    {
      "page": "calc_meat_allocation_energy",
      "title": "Calculate meat energy requirements (for biophysical allocation)",
      "topics": [
        "calc_meat_allocation_energy"
      ]
    },
    {
      "page": "calc_meat_production",
      "title": "Calculate meat production",
      "topics": [
        "calc_meat_production"
      ]
    },
    {
      "page": "calc_metabolic_energy_req_activity",
      "title": "Calculate metabolic energy requirements for activity",
      "topics": [
        "calc_metabolic_energy_req_activity"
      ]
    },
    {
      "page": "calc_metabolic_energy_req_fibre",
      "title": "Calculate metabolic energy requirements for fibre production",
      "topics": [
        "calc_metabolic_energy_req_fibre"
      ]
    },
    {
      "page": "calc_metabolic_energy_req_growth",
      "title": "Calculate metabolic energy requirements for growth",
      "topics": [
        "calc_metabolic_energy_req_growth"
      ]
    },
    {
      "page": "calc_metabolic_energy_req_lactation",
      "title": "Calculate metabolic energy requirements for lactation",
      "topics": [
        "calc_metabolic_energy_req_lactation"
      ]
    },
    {
      "page": "calc_metabolic_energy_req_maintenance",
      "title": "Calculate metabolic energy requirements for maintenance",
      "topics": [
        "calc_metabolic_energy_req_maintenance"
      ]
    },
    {
      "page": "calc_metabolic_energy_req_pregnancy",
      "title": "Calculate metabolic energy requirements for pregnancy",
      "topics": [
        "calc_metabolic_energy_req_pregnancy"
      ]
    },
    {
      "page": "calc_metabolic_energy_req_work",
      "title": "Calculate metabolic energy requirements for work",
      "topics": [
        "calc_metabolic_energy_req_work"
      ]
    },
    {
      "page": "calc_milk_allocation_energy",
      "title": "Calculate milk energy requirements (for biophysical allocation)",
      "topics": [
        "calc_milk_allocation_energy"
      ]
    },
    {
      "page": "calc_milk_production",
      "title": "Calculate milk production",
      "topics": [
        "calc_milk_production"
      ]
    },
    {
      "page": "calc_n2o_manure_direct",
      "title": "Calculate direct Nitrous Oxide (N2O) emissions from manure management systems",
      "topics": [
        "calc_n2o_manure_direct"
      ]
    },
    {
      "page": "calc_n2o_manure_leaching",
      "title": "Calculate indirect Nitrous Oxide (N2O) emissions from manure leaching and runoff",
      "topics": [
        "calc_n2o_manure_leaching"
      ]
    },
    {
      "page": "calc_n2o_manure_total",
      "title": "Calculate total Nitrous Oxide (N2O) emissions from manure",
      "topics": [
        "calc_n2o_manure_total"
      ]
    },
    {
      "page": "calc_n2o_manure_volatilization",
      "title": "Calculate indirect Nitrous Oxide (N2O) emissions from manure volatilization",
      "topics": [
        "calc_n2o_manure_volatilization"
      ]
    },
    {
      "page": "calc_n2o_ration_crop_residues",
      "title": "Calculate a ration component's contribution to nitrous oxide (N2O) emissions from crop residues decomposition",
      "topics": [
        "calc_n2o_ration_crop_residues"
      ]
    },
    {
      "page": "calc_n2o_ration_fertilizer",
      "title": "Calculate a ration component's contribution to nitrous oxide (N2O) emissions from fertilizer use",
      "topics": [
        "calc_n2o_ration_fertilizer"
      ]
    },
    {
      "page": "calc_n2o_ration_manure",
      "title": "Calculate a ration component's contribution to nitrous oxide (N2O) emissions from manure application and deposition",
      "topics": [
        "calc_n2o_ration_manure"
      ]
    },
    {
      "page": "calc_nitrogen_excretion",
      "title": "Calculate daily nitrogen excretion",
      "topics": [
        "calc_nitrogen_excretion"
      ]
    },
    {
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      "title": "Calculate daily nitrogen intake",
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      "title": "Calculate daily nitrogen retention",
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      "title": "Calculate diet gross energy contribution for a ration component",
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