Environment in Karlsruhe 14 indicators covering environment for Karlsruhe. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -3.2 Percentage change 2025 up 50.8% 690th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.03 Tonnes of CO2-equivalent 2024 down 25.0% 584th Total and environment-related patents - FUAs — Patent applications 254.8 Patents 2022 down 0.4% 66th Road, rail and navigable inland waterways networks by NUTS 2 region 0 Kilometre 2023 — 103rd Land surface temperature - Cities and FUAs — Daytime summer land 28.58 Degrees celsius 2024 down 12.2% 853rd Land surface temperature - Cities and FUAs — Daytime winter land 4.96 Degrees celsius 2024 up 30.1% 884th Land surface temperature - Cities and FUAs — Daytime yearly land 20.1 Degrees celsius 2024 down 14.3% 832nd Land surface temperature - Cities and FUAs — Nighttime summer land 16.33 Degrees celsius 2024 down 5.7% 662nd Land surface temperature - Cities and FUAs — Nighttime winter land -0.7197 Degrees celsius 2024 up 72.0% 814th Land surface temperature - Cities and FUAs — Nighttime yearly land 8.47 Degrees celsius 2024 down 5.1% 630th Air pollution - Cities and FUAs — Population exposure to nitrogen 50.56 Microgrammes per cubic metre 2025 — 116th Air pollution - Cities and FUAs — Population exposure to ozone 75.58 Microgrammes per cubic metre 2025 — 774th Air pollution - Cities and FUAs — Population exposure to PM10 42.24 Microgrammes per cubic metre 2025 — 463rd Air pollution - Cities and FUAs — Population exposure to PM2.5 38.18 Microgrammes per cubic metre 2025 — 301st