Environment in Saint-Étienne 13 indicators covering environment for Saint-Étienne. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -0.7 Percentage change 2025 up 91.6% 446th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.02 Tonnes of CO2-equivalent 2024 down 33.3% 703rd Total and environment-related patents - FUAs — Patent applications 45.8 Patents 2022 down 18.8% 218th Land surface temperature - Cities and FUAs — Daytime summer land 29.29 Degrees celsius 2024 down 7.9% 776th Land surface temperature - Cities and FUAs — Daytime winter land 7.52 Degrees celsius 2024 up 17.5% 709th Land surface temperature - Cities and FUAs — Daytime yearly land 19.87 Degrees celsius 2024 down 17.4% 870th Land surface temperature - Cities and FUAs — Nighttime summer land 15.21 Degrees celsius 2024 down 4.3% 821st Land surface temperature - Cities and FUAs — Nighttime winter land -0.1261 Degrees celsius 2024 up 94.3% 757th Land surface temperature - Cities and FUAs — Nighttime yearly land 7.8 Degrees celsius 2024 down 14.9% 734th Air pollution - Cities and FUAs — Population exposure to nitrogen 41.64 Microgrammes per cubic metre 2025 — 388th Air pollution - Cities and FUAs — Population exposure to ozone 94.46 Microgrammes per cubic metre 2025 — 437th Air pollution - Cities and FUAs — Population exposure to PM10 37.89 Microgrammes per cubic metre 2025 — 665th Air pollution - Cities and FUAs — Population exposure to PM2.5 27.94 Microgrammes per cubic metre 2025 — 638th