Environment in Indianapolis 13 indicators covering environment for Indianapolis. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -2.3 Percentage change 2025 down 187.5% 608th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.46 Tonnes of CO2-equivalent 2024 down 2.1% 96th Total and environment-related patents - FUAs — Patent applications 150.1 Patents 2022 down 59.7% 102nd Land surface temperature - Cities and FUAs — Daytime summer land 30.98 Degrees celsius 2024 down 4.5% 590th Land surface temperature - Cities and FUAs — Daytime winter land 9.07 Degrees celsius 2024 up 85.1% 634th Land surface temperature - Cities and FUAs — Daytime yearly land 23.5 Degrees celsius 2024 up 5.2% 517th Land surface temperature - Cities and FUAs — Nighttime summer land 17.81 Degrees celsius 2024 down 4.1% 519th Land surface temperature - Cities and FUAs — Nighttime winter land -3.57 Degrees celsius 2024 up 46.8% 1111th Land surface temperature - Cities and FUAs — Nighttime yearly land 8.79 Degrees celsius 2024 up 18.6% 594th Air pollution - Cities and FUAs — Population exposure to nitrogen 20.33 Microgrammes per cubic metre 2025 — 798th Air pollution - Cities and FUAs — Population exposure to ozone 48.66 Microgrammes per cubic metre 2025 — 1240th Air pollution - Cities and FUAs — Population exposure to PM10 22.64 Microgrammes per cubic metre 2025 — 1161st Air pollution - Cities and FUAs — Population exposure to PM2.5 9.76 Microgrammes per cubic metre 2025 — 1106th