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DNA shows where Washington culvert replacements helped spawning salmon

people sample water in a stream at the mouth of a culvert

To help struggling salmon populations, the state of Washington is legally required to replace hundreds of culverts that divert streams under roadways. The state transportation department is replacing old, rusting metal pipes with broad, concrete promenades that provide more gradual gradients and gentler flows for salmon swimming upstream to access more spawning grounds. The full scope of the effort will last 17 years and cost $3.8 billion. 

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REBURN: A new tool to model wildfires in the Pacific Northwest and beyond

This image shows the site of the Tripod Complex Fire one year later, in 2007.

In 2006, the Tripod Complex Fire burned more than 175,000 acres in north-central Washington. The fire, which was within the Okanogan-Wenatchee National Forest, was more than three times the size of Seattle. Yet while considered severe at the time, even larger wildfires in 2014, 2015 and 2021 have since dwarfed Tripod. Past research shows that large and severe wildfires like these were much rarer in the western U.S. 

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Are wildfires really getting worse? A Q&A with Brian Harvey

a wildfire burns in California

Whether you live in a rural community that grapples with annual threats of destructive wildfires or in a city that now spends part of every summer inundated with smoke, many across North America have found themselves wondering: what happened to cause such a sudden change in the way our forests burn? We sat down with Brian Harvey, assistant professor of environmental and forest sciences in the UW College of the Environment, to discuss some of the most frequently asked questions we encounter about the causes of wildfires, how they’re changing and what we can do to limit their impacts on human health and property. 

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Marine heat waves caused mass seabird die-offs, beach surveys show

Deceased seabirds on the beach

Seabirds, from cormorants to puffins, spend most of their lives at sea. Beloved by birdwatchers, these animals can be hard to study because they spend so much time far from shore. New research led by the University of Washington uses data collected by coastal residents along beaches from central California to Alaska to understand how seabirds have fared in recent decades. 

Read more at UW Today »