Yakama Nation leaders and others held a salmon vigil along the Little White Salmon River to attempt to raise awareness about sockeye salmon dying because of hot water.  Speakers including Columbia Riverkeeper senior attorney Miles Johnson called on the Northwest congressional delegation to support Lower Snake River dam removal and other action to cool rivers, and provide leadership on the issue.  Dam removal supporters say the dams create unnaturally hot water due to huge stagnant reservoirs, leading to salmon suffering heat stress that kills them.