{"id":"https://openalex.org/keywords/co2-equivalent","display_name":"CO2 equivalent","description":"Carbon dioxide equivalent is a common unit for expressing the climate impact of greenhouse gas emissions relative to carbon dioxide.","display_name_alternatives":["carbon dioxide equivalent","CO2e","CO2eq","CO2-e","CO2-eq"],"ids":{"openalex":"https://openalex.org/keywords/co2-equivalent","wikidata":"https://www.wikidata.org/wiki/Q1933140"},"primary_topic":{"id":"https://openalex.org/T11259","display_name":"Agriculture Sustainability and Environmental Impact","score":0.359,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11259","display_name":"Agriculture Sustainability and Environmental Impact","score":0.359,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10555","display_name":"Fire effects on ecosystems","score":0.1327,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":8156,"cited_by_count":22844,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/co2-equivalent","updated_date":"2026-10-20T04:07:40","created_date":"2026-09-30T00:00:00"}