Plant a native tree in your yard. Remember to pick up after your pet. Scoop the poop and put in the garbage or flush it down the toilet. Help pull weeds in your yard and garden instead of spraying to control them. Help recycle used motor oil at the curbside.
Litter can wash into storm drains that go to rivers and streams.
Help wash the family car on the grass or ask your parents to take it to a car wash that recycles wash water. The National Marine Fisheries Service has listed Columbia River steelhead trout as a threatened species. Steelhead are a kind of trout native to Oregon, but they also are very similar to the salmon. Steelhead are threatened because erosion and water pollution are destroying their natural habitat. Steelhead and salmon are born in fresh water, travel to the ocean, then return to fresh water to lay their eggs.