Environment in Heidelberg 13 indicators covering environment for Heidelberg. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -2.6 Percentage change 2025 up 58.7% 641st 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 134.7 Patents 2022 down 28.5% 111th Land surface temperature - Cities and FUAs — Daytime summer land 27.54 Degrees celsius 2024 down 13.3% 991st Land surface temperature - Cities and FUAs — Daytime winter land 3.97 Degrees celsius 2024 up 23.7% 1013th Land surface temperature - Cities and FUAs — Daytime yearly land 18.96 Degrees celsius 2024 down 14.8% 992nd Land surface temperature - Cities and FUAs — Nighttime summer land 16.6 Degrees celsius 2024 down 5.2% 640th Land surface temperature - Cities and FUAs — Nighttime winter land -1.54 Degrees celsius 2024 up 50.6% 930th Land surface temperature - Cities and FUAs — Nighttime yearly land 8.45 Degrees celsius 2024 down 6.1% 641st Air pollution - Cities and FUAs — Population exposure to nitrogen 49.69 Microgrammes per cubic metre 2025 — 134th Air pollution - Cities and FUAs — Population exposure to ozone 80.43 Microgrammes per cubic metre 2025 — 716th Air pollution - Cities and FUAs — Population exposure to PM10 41.48 Microgrammes per cubic metre 2025 — 488th Air pollution - Cities and FUAs — Population exposure to PM2.5 34.06 Microgrammes per cubic metre 2025 — 388th