Environment in Heilbronn 13 indicators covering environment for Heilbronn. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -2.2 Percentage change 2025 up 65.6% 593rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.01 Tonnes of CO2-equivalent 2024 unchanged 872nd Total and environment-related patents - FUAs — Patent applications 92.2 Patents 2022 down 17.1% 140th Land surface temperature - Cities and FUAs — Daytime summer land 29.59 Degrees celsius 2024 down 12.6% 741st Land surface temperature - Cities and FUAs — Daytime winter land 4.27 Degrees celsius 2024 up 6.3% 967th Land surface temperature - Cities and FUAs — Daytime yearly land 20.24 Degrees celsius 2024 down 16.8% 818th Land surface temperature - Cities and FUAs — Nighttime summer land 15.76 Degrees celsius 2024 down 1.9% 731st Land surface temperature - Cities and FUAs — Nighttime winter land -1.67 Degrees celsius 2024 up 48.7% 947th Land surface temperature - Cities and FUAs — Nighttime yearly land 7.91 Degrees celsius 2024 down 6.5% 709th Air pollution - Cities and FUAs — Population exposure to nitrogen 50.32 Microgrammes per cubic metre 2025 — 125th Air pollution - Cities and FUAs — Population exposure to ozone 77.83 Microgrammes per cubic metre 2025 — 752nd Air pollution - Cities and FUAs — Population exposure to PM10 43.16 Microgrammes per cubic metre 2025 — 437th Air pollution - Cities and FUAs — Population exposure to PM2.5 37.38 Microgrammes per cubic metre 2025 — 323rd