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December 30, 2025

Cougar in tree. Photo courtesy of National Park Service.">

Where mountain lions and people do or do not mix

Occasionally, this space includes reports and essays from guest writers on the subject of Puget Sound ecosystem recovery. Today we look inland at our mountains and forests where top predators like cougars remind us that nature is still wild and — often — unpredictable. PSI staff writer Eric Wagner has this look at a new […]

October 1, 2025

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What is driving ongoing contamination in Commencement Bay?

Despite more than four decades of a Superfund cleanup along Tacoma’s industrial Tideflats, research suggests that large amounts of toxic chemicals like PCBs and PBDEs may still be entering the waterway. Our affiliates at the Center for Urban Waters are co-leading a new project to identify contaminant hotspots. When it was first designated in 1983, […]

July 7, 2025

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A photographic tour of the entire Puget Sound shoreline by watercraft and aircraft

Kayaker-scientist Brian Footen is back on the waters of Puget Sound this summer, paddling through inlets and circling islands on a 2,700-mile journey to photograph the shoreline and document natural and human-caused changes to the habitat. This state-funded project is Brian’s second photographic trip along the sinuous shoreline throughout the entirety of the Sound, from […]

June 23, 2025

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The debate over oxygen in Puget Sound

A draft nutrient reduction plan from the Washington Department of Ecology is out for public review. Now, many new developments — technical, scientific and legal — are reaching a critical stage and setting up a framework to make some major decisions. This four-part series in Our Water Ways looks back on how we have reached our present condition, including a consideration of possible solutions.