Toxic remnants from a wood treating facility’s operations linger in Ridgefield residents’ yards decades after the company halted operations, prompting a fresh round of sampling and further cleanup.

Editor’s note (July 8): The cost of the cleanup cited in this article was revised Monday, July 8, after the Department of Ecology provided updated information. Sampling and dredging begins this month ...

A new scientific review challenges the headline-grabbing claim that Yellowstone’s returning wolves triggered one of the strongest trophic cascades on Earth. Researchers found that the reported 1,500% ...

Free PFAS well testing has restarted on the West Plains as the EPA and state Department of Ecology determine the scope of contamination. Testing conducted by the government agencies first began ...

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Invasive species, pathogens, and parasites can have serious ecological consequences for aquatic ecosystems and also put human health and economies at risk. Early detection of these biological threats ...

1. Model-based distance sampling is commonly used to understand spatial variation in the density of wildlife species. The standard approach assumes that individuals are distributed uniformly and ...