The Federal Courts have approved the removal of the four dams that block anadromous fish (salmon, sturgeon) from being able to return to sites over most of their historic spawning territory.
https://www.opb.org/article/2022/11/18/klamath-river-dam-removal-southern-oregon-dams-northern-california-drought/
https://www.opb.org/article/2022/11/18/klamath-river-dam-removal-southern-oregon-dams-northern-california-drought/