Environment in Cayenne 13 indicators covering environment for Cayenne. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly 1.8 Percentage change 2025 up 123.7% 252nd Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.01 Tonnes of CO2-equivalent 2024 — 872nd Total and environment-related patents - FUAs — Patent applications 0.1 Patents 2019 down 90.0% 871st Land surface temperature - Cities and FUAs — Daytime summer land 31.54 Degrees celsius 2024 down 0.9% 534th Land surface temperature - Cities and FUAs — Daytime winter land 30.57 Degrees celsius 2024 up 4.4% 38th Land surface temperature - Cities and FUAs — Daytime yearly land 31.74 Degrees celsius 2024 down 1.1% 114th Land surface temperature - Cities and FUAs — Nighttime summer land 24.12 Degrees celsius 2024 up 6.2% 41st Land surface temperature - Cities and FUAs — Nighttime winter land 22.55 Degrees celsius 2024 up 4.1% 9th Land surface temperature - Cities and FUAs — Nighttime yearly land 23.45 Degrees celsius 2024 up 3.5% 4th Air pollution - Cities and FUAs — Population exposure to nitrogen 0.3851 Microgrammes per cubic metre 2025 — 1322nd Air pollution - Cities and FUAs — Population exposure to ozone 45.33 Microgrammes per cubic metre 2025 — 1273rd Air pollution - Cities and FUAs — Population exposure to PM10 60.9 Microgrammes per cubic metre 2025 — 176th Air pollution - Cities and FUAs — Population exposure to PM2.5 37.14 Microgrammes per cubic metre 2025 — 329th