SHORES OF THE SALISH SEA, Tulalip — Keeley Chiasson plodded through the steep, sandy sediment near the base of the bluff. Carefully perched on a firm shelf, she scraped back the weathered surface of the wall, revealing stripes of cocoa, rust and tan sediments. These layers may reveal clues about the history of this place and could inform communities here on how to adapt to a changing climate. When factoring in variables including groundwater, wave action, material strength and vegetation cover, Chiasson and other researchers can unearth answers to how quickly a rising sea and stronger storm surges will gnaw...