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Human impacts
The effects, intentional or unintentional, beneficial or harmful, direct or indirect, which human activities have upon the environment and living things.
Subtopics:
Abandoned mines and quarries (5 items)
Dredging (1 items)
Ecosystem services (1 items)
Land use change (21 items)
Mining hazards (10 items)
Overfishing (3 items)
Overgrazing (1 items)
Waste treatment and disposal (23 items)
Related topics:


Results 31 - 40 of 107 listed alphabetically [list by similarity]
Coastal change hazards digital library [More info]
Online catalog of reports and data on coastal change hazards, indexed by author, agency, project, location, feature type, and topic
PDF Development of computational fluid dynamics--habitat suitability (CFD-HSI) models to identify potential passage--Challenge zones for migratory fishes in the Penobscot River [More info]
Proposed removal of dams will change the characteristics of stream flow and will affect fish that swim upstream to spawn. A mathematical model of the river flow tells us where the likely problems will be located and how the flow will change.
Dissolved solids in basin-fill aquifers and streams in the southwestern United States [More info]
PDF Drilling a deep geologic test well at Hilton Head Island, South Carolina [More info]
With the South Carolina Department of Health and Environmental Control, USGS is drilling a deep geologic test well to learn about the regional Floridan aquifer, which provides groundwater to the Hilton Head area.
PDF Effects of brush management on the hydrologic budget and water quality in and adjacent to Honey Creek State Natural Area, Comal County, Texas, 2001--10 [More info]
Comparison of water in two adjacent watersheds before and after implementing a brush management strategy in one of the watersheds helps us see what water resource characteristics are sensitive to brush management and how.
Effects of land use on water quality in Michigan [More info]
Links to projects that provide information on the relation of land use to water quality, sources of pollutants, or trends in water quality.
PDF Effects of urban stormwater-management strategies on stream-water quantity and quality [More info]
Changes in the way communities address potential problems with stormwater runoff may affect surface waters. This study combines geographic with hydrologic analyses to better understand the effects of the management strategies.
PDF Effects of wastewater on forested wetlands [More info]
Study of the effects of the practice of cycling municipal nutrient-enriched wastewater from holding ponds through forested wetlands. Studies were in the Cypiere Perdue Swamp, Louisiana, and the Drummond Bog, Wisconsin.
PDF Emissions from Coal Fires and Their Impact on the Environment [More info]
Reviews how coal fires occur, how they can be detected by airborne and remote surveys, and, most importantly, the impact coal-fire emissions may have on the environment and human health, especially mercury, carbon dioxide, carbon monoxide, and methane.
Environmental Affairs Program [More info]
The USGS reviews and prepares technical comments on environmental impact statements and establishes policies to implement the National Environmental Policy Act (NEPA). Site has links to environmental laws and regulations including NEPA.
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