Environment in Nagano 15 indicators covering environment for Nagano. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -4.9 Percentage change 2025 down 172.2% 850th Historical exposure to drought — Cropland soil moisture anomaly -4.68 Percentage change 2025 down 51.4% 2048th Historical exposure to drought — Land soil moisture anomaly -4.72 Percentage change 2025 down 50.2% 2174th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.03 Tonnes of CO2-equivalent 2024 down 25.0% 584th River flooding exposure — Cropland share exposed to river flooding 3.7 Percentage of agricultural land area 2022 up 1.3% 1155th Land surface temperature - Cities and FUAs — Daytime summer land 27.12 Degrees celsius 2024 down 4.1% 1025th Land surface temperature - Cities and FUAs — Daytime winter land 4.87 Degrees celsius 2024 up 89.9% 895th Land surface temperature - Cities and FUAs — Daytime yearly land 17.84 Degrees celsius 2024 down 2.1% 1130th Land surface temperature - Cities and FUAs — Nighttime summer land 16.52 Degrees celsius 2024 down 3.5% 641st Land surface temperature - Cities and FUAs — Nighttime winter land -2.4 Degrees celsius 2024 up 65.9% 1012th Land surface temperature - Cities and FUAs — Nighttime yearly land 7.78 Degrees celsius 2024 up 28.5% 730th Air pollution - Cities and FUAs — Population exposure to nitrogen 9.31 Microgrammes per cubic metre 2025 — 1079th Air pollution - Cities and FUAs — Population exposure to ozone 68.27 Microgrammes per cubic metre 2025 — 877th Air pollution - Cities and FUAs — Population exposure to PM10 24.55 Microgrammes per cubic metre 2025 — 1110th Air pollution - Cities and FUAs — Population exposure to PM2.5 7.9 Microgrammes per cubic metre 2025 — 1223rd