Environment in Guelph 13 indicators covering environment for Guelph. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -0.2 Percentage change 2025 up 86.7% 404th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.07 Tonnes of CO2-equivalent 2024 unchanged 407th Total and environment-related patents - FUAs — Patent applications 12.6 Patents 2022 down 45.2% 422nd Land surface temperature - Cities and FUAs — Daytime summer land 28.6 Degrees celsius 2024 down 10.0% 858th Land surface temperature - Cities and FUAs — Daytime winter land 3.67 Degrees celsius 2024 up 1,065.7% 1044th Land surface temperature - Cities and FUAs — Daytime yearly land 20.35 Degrees celsius 2024 down 4.3% 804th Land surface temperature - Cities and FUAs — Nighttime summer land 14.31 Degrees celsius 2024 down 4.5% 971st Land surface temperature - Cities and FUAs — Nighttime winter land -5.36 Degrees celsius 2024 up 52.0% 1240th Land surface temperature - Cities and FUAs — Nighttime yearly land 5.37 Degrees celsius 2024 up 11.4% 1211th Air pollution - Cities and FUAs — Population exposure to nitrogen 12.29 Microgrammes per cubic metre 2025 — 947th Air pollution - Cities and FUAs — Population exposure to ozone 54.93 Microgrammes per cubic metre 2025 — 1066th Air pollution - Cities and FUAs — Population exposure to PM10 30.29 Microgrammes per cubic metre 2025 — 963rd Air pollution - Cities and FUAs — Population exposure to PM2.5 9.72 Microgrammes per cubic metre 2025 — 1109th