Environment in Calais 13 indicators covering environment for Calais. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -6.3 Percentage change 2025 down 6,400.0% 948th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.01 Tonnes of CO2-equivalent 2024 unchanged 865th Total and environment-related patents - FUAs — Patent applications 0.3 Patents 2022 down 80.0% 826th Land surface temperature - Cities and FUAs — Daytime summer land 26.61 Degrees celsius 2024 down 11.6% 1076th Land surface temperature - Cities and FUAs — Daytime winter land 5.53 Degrees celsius 2024 down 1.0% 829th Land surface temperature - Cities and FUAs — Daytime yearly land 18.37 Degrees celsius 2024 down 4.2% 1060th Land surface temperature - Cities and FUAs — Nighttime summer land 13.78 Degrees celsius 2024 down 1.1% 1045th Land surface temperature - Cities and FUAs — Nighttime winter land 1.93 Degrees celsius 2024 up 217.8% 515th Land surface temperature - Cities and FUAs — Nighttime yearly land 8.27 Degrees celsius 2024 up 6.3% 650th Air pollution - Cities and FUAs — Population exposure to nitrogen 49.5 Microgrammes per cubic metre 2025 — 138th Air pollution - Cities and FUAs — Population exposure to ozone 88.97 Microgrammes per cubic metre 2025 — 528th Air pollution - Cities and FUAs — Population exposure to PM10 43.15 Microgrammes per cubic metre 2025 — 434th Air pollution - Cities and FUAs — Population exposure to PM2.5 28.2 Microgrammes per cubic metre 2025 — 615th