Environment in Knox 13 indicators covering environment for Knox. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -2.2 Percentage change 2025 down 151.2% 593rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.16 Tonnes of CO2-equivalent 2024 unchanged 231st Total and environment-related patents - FUAs — Patent applications 39.6 Patents 2022 down 36.4% 244th Land surface temperature - Cities and FUAs — Daytime summer land 31.17 Degrees celsius 2024 up 2.5% 573rd Land surface temperature - Cities and FUAs — Daytime winter land 11.74 Degrees celsius 2024 up 21.6% 487th Land surface temperature - Cities and FUAs — Daytime yearly land 23.41 Degrees celsius 2024 up 2.3% 523rd Land surface temperature - Cities and FUAs — Nighttime summer land 18.92 Degrees celsius 2024 down 1.2% 425th Land surface temperature - Cities and FUAs — Nighttime winter land -0.4324 Degrees celsius 2024 up 74.1% 795th Land surface temperature - Cities and FUAs — Nighttime yearly land 9.96 Degrees celsius 2024 up 16.8% 481st Air pollution - Cities and FUAs — Population exposure to nitrogen 13.33 Microgrammes per cubic metre 2025 — 916th Air pollution - Cities and FUAs — Population exposure to ozone 49.81 Microgrammes per cubic metre 2025 — 1214th Air pollution - Cities and FUAs — Population exposure to PM10 23.1 Microgrammes per cubic metre 2025 — 1149th Air pollution - Cities and FUAs — Population exposure to PM2.5 8.44 Microgrammes per cubic metre 2025 — 1184th