Environment in Boulder 13 indicators covering environment for Boulder. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly 2.5 Percentage change 2025 up 129.4% 206th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.06 Tonnes of CO2-equivalent 2024 unchanged 447th Total and environment-related patents - FUAs — Patent applications 259 Patents 2022 up 15.7% 63rd Land surface temperature - Cities and FUAs — Daytime summer land 30.84 Degrees celsius 2024 down 0.3% 603rd Land surface temperature - Cities and FUAs — Daytime winter land 4.42 Degrees celsius 2024 down 6.4% 950th Land surface temperature - Cities and FUAs — Daytime yearly land 18.83 Degrees celsius 2024 up 1.0% 1011th Land surface temperature - Cities and FUAs — Nighttime summer land 10.73 Degrees celsius 2024 up 8.0% 1286th Land surface temperature - Cities and FUAs — Nighttime winter land -8.8 Degrees celsius 2024 down 11.6% 1346th Land surface temperature - Cities and FUAs — Nighttime yearly land -0.6314 Degrees celsius 2024 up 55.5% 1377th Air pollution - Cities and FUAs — Population exposure to nitrogen 15.84 Microgrammes per cubic metre 2025 — 863rd Air pollution - Cities and FUAs — Population exposure to ozone 71.86 Microgrammes per cubic metre 2025 — 831st Air pollution - Cities and FUAs — Population exposure to PM10 21.88 Microgrammes per cubic metre 2025 — 1173rd Air pollution - Cities and FUAs — Population exposure to PM2.5 6.56 Microgrammes per cubic metre 2025 — 1305th