Saving the Salmon
LOGGING
Increased logging means increased erosion, causing topsoil to flow into rivers, smothering salmon eggs. Logging must be limited and moved back from riverbanks.
GOLF COURSES
Caring for greens requires lots of fertilizer and river water. Golf courses must recycle water and limit fertilizer.
HYDROELECTRIC DAMS
Dams hurt baby fish by slowing down water, which raises its temperature and increases the time it takes the young to get to the ocean. Others are killed by hydroelectric turbines before they can even start downstream. Adult fish swimming upstream often fail to make it over the dam, as staircase-like "fish ladders" prove only partly effective. Some dams must be redesigned; others should be removed.
FARMS
Cattle waste produces nitrogen runoff that poisons streams. Farmers must keep cows away from rivers, reduce cattle populations and treat waste before using it as fertilizer.
SUBURBS
Homeowners must wash cars less often and limit pesticide and herbicide use, all of which produce toxic runoff. Water-saving toilets can help maintain river levels. Owners of riverfront homes must eliminate antierosion bulkheads, which keep sand and debris from replenishing kelp beds that protect baby salmon.
CITY
Water running off paved surfaces carries toxins like motor oil into rivers. Inadequately treated sewage makes things worse. New sewage-treatment plants must be built and wetlands preserved to allow rainwater to filter through soil.
COMMERCIAL AND SPORT FISHING
Overfishing depletes the already sparse salmon population. New catch limits must be imposed.
INDUSTRY
Waste heat and industrial runoff turn rivers warm and toxic--bad news for salmon, which like their water clear and cold. New pollution controls are needed.
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