Killer whales are active both day and night, but most scientific research focuses on their daytime activities. A recent study looked at a small group of endangered southern residents to find out how o...

The tire chemical 6PPD is known worldwide for its deadly effect on salmon, but it also has a complex history. We look at how this history connects to important breakthroughs in modern transportation a...

With a worldwide market valuation somewhere around $1 billion a year for the single chemical 6PPD, tire companies and their chemical suppliers are working overtime to find a safe and effective replace...

OverviewThe northern right whale dolphin (Lissodelphis borealis) is one of the most unusual marine mammals of the North Pacific Ocean. It is the only dolphin species in the Northern Hemisphere with no...

A chemical found in tires is leading to the deaths of untold numbers of coho salmon in Puget Sound every year. Chemical companies are searching for an alternative but say the unique chemistry and func...

The past, present and future of natural conditions in the United States are described in a new report, which has traveled a bumpy road to its current draft form, now out for public review and comment....

From puffins to auklets, the feathered creatures of Destruction Island reveal the impacts of climate change.

A US judge will decide if, as research suggests, a chemical tyre additive is harming endangered fish species

February 10, 2026 Salish Sea Science Roundtable. Twelve years ago, the Tulalip Beaver Project started with a bold idea: maybe we can partner with beavers—nature’s original engineers—to help restore salmon habitat. Today, the project is known across the country for showing how people and wildlife can work together to heal our watersheds. In this presentation, we’ll look at why beavers matter, how the Tulalip Beaver Project safely captures and relocates them, and the lessons we’ve learned from years of on‑the‑ground restoration and outreach. View the slides and learn more at: https://www.pugetsoundinstitute.org/salish-sea-science-roundtables/ Chapters 00:00 Intro 1:12 Beavers as Partners in Restoration 33:28 Q&A

Waxes containing PFAS are banned at the Milan-Cortina Games. Three athletes already have been disqualified for using them.

Increasing concerns surround PFAS in products from wastewater treatment plants. How great a risk do they pose, and are there feasible approaches to removing them? We continue our occasional series on ...

The Salish Sea Science Roundtable online speaker series continues on Tuesday, February 10 from 12:30 – 1:30 pm. Twelve years ago, the Tulalip Beaver Project started with a bold idea: maybe we can part...

A 2026 paper in the journal Environmental Management explores how salmon contribute to "sense of place" and regional identity among Puget Sound residents. The paper was produced by researchers at the ...

Conservationists say that a chemical used by car tire manufacturers in the U.S. is leaching into waterways and killing protected fish species.

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 cou...

The year 2025 has been fairly mystifying to experts who make their living studying natural systems in the Puget Sound region.Unusual observations this year include record-low dissolved oxygen levels, ...

YouTube video by Encyclopedia of Puget Sound

YouTube video by Encyclopedia of Puget Sound

In a new study, University of Washington researchers collected salmon DNA in air filters near a stream, showing that eDNA can move between air and water, a possibility scientists hadn’t accounted...

Study: Acidification in the Pacific foreshadows world's other waters