Environment in Charleston 13 indicators covering environment for Charleston. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -2.3 Percentage change 2025 down 160.5% 608th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.08 Tonnes of CO2-equivalent 2024 down 11.1% 371st Total and environment-related patents - FUAs — Patent applications 38.4 Patents 2022 up 12.9% 253rd Land surface temperature - Cities and FUAs — Daytime summer land 29.5 Degrees celsius 2024 down 1.5% 755th Land surface temperature - Cities and FUAs — Daytime winter land 13.74 Degrees celsius 2024 down 2.3% 362nd Land surface temperature - Cities and FUAs — Daytime yearly land 22.66 Degrees celsius 2024 down 0.8% 579th Land surface temperature - Cities and FUAs — Nighttime summer land 21.76 Degrees celsius 2024 down 0.4% 165th Land surface temperature - Cities and FUAs — Nighttime winter land 6.03 Degrees celsius 2024 down 12.6% 271st Land surface temperature - Cities and FUAs — Nighttime yearly land 14.34 Degrees celsius 2024 up 7.2% 192nd Air pollution - Cities and FUAs — Population exposure to nitrogen 10.07 Microgrammes per cubic metre 2025 — 1049th Air pollution - Cities and FUAs — Population exposure to ozone 54.09 Microgrammes per cubic metre 2025 — 1087th Air pollution - Cities and FUAs — Population exposure to PM10 18.54 Microgrammes per cubic metre 2025 — 1259th Air pollution - Cities and FUAs — Population exposure to PM2.5 8.64 Microgrammes per cubic metre 2025 — 1174th