gas filter on emission queries. Includes CO2, CH4, N2O, the two CO2-equivalent variants (co2e_100yr GWP100, co2e_20yr GWP20), F-gases, and air pollutants such as PM2.5, NOx, SO2. Data sourced from Climate TRACE under CC BY 4.0.x-api-key: ********************curl --location '/api/v1/environment/ct/definitions/gases' \
--header 'x-api-key: <api-key>'gas query parameter.{
"data": {
"gases": [
"string"
]
},
"meta": {
"endpoint": "/api/v1/fred/us/cpi",
"data_time": "2026-04-16T14:30:00Z",
"response_time": "2026-04-16T14:30:12Z",
"provider": "Sugra API v1.0.1",
"source": "string",
"fallback_used": true,
"fallback_chain": [
"string"
],
"cached": true
}
}