Freshwater Resources and Ecosystems

According to USGS data, thermoelectric power consistently accounts for the largest share of freshwater withdrawals in the United States, primarily for cooling power plants.

Sand, gravel, and charcoal are standard filtration media used in water treatment plants to remove suspended solids and impurities.

Urbanization replaces natural soil with impermeable surfaces like concrete and asphalt, which prevents water from soaking into the ground and alters natural drainage patterns.

Water pollution can be caused by various sources, including chemical runoff, physical litter, and excess sediment from erosion.

Wetlands are highly valuable ecosystems that provide critical services like water purification, flood control, and habitat for diverse species; calling them useless is incorrect.

Freshwater ecosystems, such as rivers, lakes, and wetlands, are known for their high levels of biodiversity and are essential habitats for many species.

Rivers are fed by a combination of surface runoff from rain, groundwater discharge from aquifers, and melting ice or snow from higher elevations.

The production of beef is water-intensive, with estimates often citing around 1,800 gallons of water required to produce a single pound of beef when accounting for feed and hydration.

An estuary is a body of water where freshwater from rivers meets and mixes with saltwater from the ocean, making it a brackish ecosystem rather than a strictly freshwater one.

Only about 2.5 percent of all water on Earth is freshwater, and the vast majority of that is locked in glaciers and ice caps.