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National parks and reserves--Management National parks and reserves--Planning Geology Planning Hydrology Effect of mining on Vegetation and climate Bering Land Bridge National Preserve (Alaska) Cumulative effects assessment (Environmental assessment) Land use and energy conservation Air quality Soils Gates of the Arctic National Park and Preserve (Alaska) Yukon-Charley Rivers National Preserve (Alaska) Kurupa Lake (Alaska) Water quality Environmental risk assessment Noatak National Preserve (Alaska) Strategic planning Water resources development Scientific surveys [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Ecology [SDE.BE]Environmental Sciences/Biodiversity and Ecology Drainage [SDU]Sciences of the Universe [physics] [SDE.MCG]Environmental Sciences/Global Changes Oceanography [SDE]Environmental Sciences