Environment in Calgary 13 indicators covering environment for Calgary. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -11.9 Percentage change 2025 down 77.6% 1233rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.17 Tonnes of CO2-equivalent 2024 up 6.2% 224th Total and environment-related patents - FUAs — Patent applications 185 Patents 2022 down 8.8% 83rd Land surface temperature - Cities and FUAs — Daytime summer land 31.53 Degrees celsius 2024 down 2.5% 535th Land surface temperature - Cities and FUAs — Daytime winter land -1.3 Degrees celsius 2024 up 64.3% 1329th Land surface temperature - Cities and FUAs — Daytime yearly land 20.15 Degrees celsius 2024 up 5.0% 832nd Land surface temperature - Cities and FUAs — Nighttime summer land 12.4 Degrees celsius 2024 up 13.4% 1198th Land surface temperature - Cities and FUAs — Nighttime winter land -12.13 Degrees celsius 2024 up 16.9% 1375th Land surface temperature - Cities and FUAs — Nighttime yearly land 0.9784 Degrees celsius 2024 up 774.3% 1362nd Air pollution - Cities and FUAs — Population exposure to nitrogen 18.39 Microgrammes per cubic metre 2025 — 831st Air pollution - Cities and FUAs — Population exposure to ozone 57.05 Microgrammes per cubic metre 2025 — 1031st Air pollution - Cities and FUAs — Population exposure to PM10 50.7 Microgrammes per cubic metre 2025 — 278th Air pollution - Cities and FUAs — Population exposure to PM2.5 36.45 Microgrammes per cubic metre 2025 — 343rd