Solution to the Willamette River algae bloom identified

The recurring toxic algae bloom plaguing the Willamette River is in many ways a human-caused problem, and now it appears to have a human-made solution.

PORTLAND, Oregon — Toxic algae blooms in the Willamette River have become a recurring summer problem in recent years, making the normally swimmer-friendly waterway unsafe for Portlanders. The phenomenon is caused in part by warming temperatures and an abundance of river nutrients, but there’s a third factor that might have a relatively straightforward solution: stagnant water.

Dr. Desiree Tullos, a professor of water resources engineering at Oregon State University, has spent the past five years volunteering her time to study the annual

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