Sometimes there's a great notionan idea that strikes to the core of an issue and, in it's elegance and simplicity, leads us to solve a vexing problem.
Salmon play a significant role in the economy and culture of the Pacific Northwest. But the salmon stock is in decline due to the "four H's": habitat, hatcheries, harvest, and hydropower. On the Snake River, salmon and steelhead runs that have spawned there for the last 10,000 years have been virtually destroyed.
Writer Yale Lewis posits that removing some of the economically insignificant dams will bring the most immediate and cost-effective changes, creating improved migration conditions and aiding in the regeneration of the river environment that will, in turn, be conducive to salmon spawning again. Using four dams on the lower Snake River he weaves a meticulously researched argument for their destruction, an argument that can be applied to dams across the country.