Environment in United States Minor Outlying Islands 27 indicators covering environment for United States Minor Outlying Islands. IndicatorLatest Year10-yr change Rank Exposure to air pollution from human sources 1.95 micrograms per cubic meter 2024 down 55.8% 220th Sparsely natural vegetated areas — Area from CCI_LC 1.27 1000 ha 2022 unchanged 133rd Shrubs and/or herbaceous vegetation, aquatic or regularly flooded 0 1000 ha 2022 — 182nd Shrub-covered areas — Area from CCI_LC 0.01 1000 ha 2022 unchanged 215th Terrestrial barren land — Area from CCI_LC 0 1000 ha 2022 — 169th Mangroves — Area from CCI_LC 0 1000 ha 2022 — 108th Tree-covered areas — Area from CCI_LC 0.14 1000 ha 2022 unchanged 213th Permanent snow and glaciers — Area from CCI_LC 0 1000 ha 2022 — 36th Grassland — Area from CCI_LC 0.02 1000 ha 2022 unchanged 221st Woody crops — Area from CCI_LC 0.11 1000 ha 2022 unchanged 209th Herbaceous crops — Area from CCI_LC 0.11 1000 ha 2022 unchanged 210th Inland water bodies — Area from CCI_LC 46.55 1000 ha 2022 unchanged 142nd Artificial surfaces (including urban and associated areas) — Area 0 1000 ha 2022 — 214th Inland water bodies — Area from MODIS 44.78 1000 ha 2024 down 0.0% 130th Permanent snow and glaciers — Area from MODIS 0 1000 ha 2024 — 46th Terrestrial barren land — Area from MODIS 0.04 1000 ha 2024 down 73.3% 187th Artificial surfaces (including urban and associated areas) — Area 0 1000 ha 2024 — 203rd Shrubs and/or herbaceous vegetation, aquatic or regularly flooded 0.41 1000 ha 2024 up 95.2% 195th Shrub-covered areas — Area from MODIS 0 1000 ha 2024 — 138th Mangroves — Area from MODIS 0 1000 ha 2024 — 110th Tree-covered areas — Area from MODIS 0.45 1000 ha 2024 up 9.8% 199th Grassland — Area from MODIS 0 1000 ha 2024 down 100.0% 215th Herbaceous crops — Area from MODIS 0.02 1000 ha 2024 — 191st 15.2.1 Forest area under an independently verified forest management 0 1000 ha 2024 — 80th Average proportion of Terrestrial Key Biodiversity Areas (KBAs) 96.0% 2025 unchanged 11th Average proportion of Marine Key Biodiversity Areas (KBAs) covered by 91.3% 2025 unchanged 20th Forest area certified under an independently verified certification 0 ha th 2024 — 92nd