The loss of glaciers in the American West poses significant risks to ecosystems and water resources. Glaciers provide essential water supplies to high alpine ecosystems, particularly during dry late summer months. Their retreat could lead to reduced water availability for cold-adapted fish and other stream life. Additionally, the retreat of glaciers on steep-sided volcanoes in the Cascade Range increases the risk of landslides and debris flows, which could disrupt infrastructure and ecosystems. The loss of glaciers in Washington may also impact hydropower production, a critical energy source in the region.