Environment in Bielefeld 13 indicators covering environment for Bielefeld. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -10.4 Percentage change 2025 down 485.2% 1191st Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.04 Tonnes of CO2-equivalent 2024 down 20.0% 537th Total and environment-related patents - FUAs — Patent applications 72.8 Patents 2022 up 18.4% 166th Land surface temperature - Cities and FUAs — Daytime summer land 26.2 Degrees celsius 2024 down 16.2% 1142nd Land surface temperature - Cities and FUAs — Daytime winter land 1.6 Degrees celsius 2024 down 10.1% 1254th Land surface temperature - Cities and FUAs — Daytime yearly land 18.32 Degrees celsius 2024 down 11.0% 1075th Land surface temperature - Cities and FUAs — Nighttime summer land 13.53 Degrees celsius 2024 down 8.0% 1093rd Land surface temperature - Cities and FUAs — Nighttime winter land -2.45 Degrees celsius 2024 up 38.1% 1025th Land surface temperature - Cities and FUAs — Nighttime yearly land 6.79 Degrees celsius 2024 down 4.6% 966th Air pollution - Cities and FUAs — Population exposure to nitrogen 43.09 Microgrammes per cubic metre 2025 — 331st Air pollution - Cities and FUAs — Population exposure to ozone 86.2 Microgrammes per cubic metre 2025 — 594th Air pollution - Cities and FUAs — Population exposure to PM10 35.72 Microgrammes per cubic metre 2025 — 776th Air pollution - Cities and FUAs — Population exposure to PM2.5 27.05 Microgrammes per cubic metre 2025 — 680th