Environment in Greater Valletta 12 indicators covering environment for Greater Valletta. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -1.2 Percentage change 2025 down 122.2% 495th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.05 Tonnes of CO2-equivalent 2024 up 66.7% 486th Land surface temperature - Cities and FUAs — Daytime summer land 38.2 Degrees celsius 2024 up 2.9% 161st Land surface temperature - Cities and FUAs — Daytime winter land 17.03 Degrees celsius 2024 up 3.1% 257th Land surface temperature - Cities and FUAs — Daytime yearly land 29.44 Degrees celsius 2024 up 2.0% 201st Land surface temperature - Cities and FUAs — Nighttime summer land 23.75 Degrees celsius 2024 up 9.1% 50th Land surface temperature - Cities and FUAs — Nighttime winter land 10.27 Degrees celsius 2024 up 17.5% 128th Land surface temperature - Cities and FUAs — Nighttime yearly land 16.54 Degrees celsius 2024 up 2.6% 121st Air pollution - Cities and FUAs — Population exposure to nitrogen 45.77 Microgrammes per cubic metre 2025 — 225th Air pollution - Cities and FUAs — Population exposure to ozone 138.5 Microgrammes per cubic metre 2025 — 56th Air pollution - Cities and FUAs — Population exposure to PM10 58.35 Microgrammes per cubic metre 2025 — 188th Air pollution - Cities and FUAs — Population exposure to PM2.5 29.95 Microgrammes per cubic metre 2025 — 534th