Greenwire: Washington state boasts one of the only temperate rainforests in the world, one of the world’s largest inland water systems at the Puget Sound, and the fourth largest river in the United States. Washington residents, many of whom are hikers and bikers, spend a lot of time outdoors. And many voters care about the environment, according to a recent survey of registered voters in southwest Washington, commissioned by two environmental groups. Seventy-three percent said conservation is …