Notice letter alleges violations involving chlorine; Industrial aquaculture giant sued over separate Columbia River pollution ...

PORTLAND, Ore.Two environmental advocacy organizations have issued a formal notice of intent to sue a subsidiary of Pacific ...

Just 74 southern resident orcas remain, as of the latest count by the Center for Whale Research. The count has hovered around this low point for several years.

Kari Salis, a technical unit manager for the Oregon Health Authority Drinking Water Program, said the state started testing ...

The barge was shifted away from the immediate area of the dock, but remained in the river as of Wednesday. Hill said that Colarusso was contracting with a salvage company to move the barge. The Coast ...

As a child, Lisa Garcia spent her summers in a South Bronx where playgrounds had more cracked pavement and asphalt than grass ...

The Oregon Department of Environmental Quality approved an air quality permit for Zenith Energy's fuel terminal in Northwest Portland.

This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, ...

The endangered whales face multiple threats, from a lack of their primary food, chinook salmon, to underwater noise from ...

Prosser sits in the heart of Washington wine country, surrounded by rolling vineyards that look like they belong on a postcard. This little town has more than 30 wineries and tasting rooms within a ...

A United Nations letter to Colombia warns that mercury contamination from illegal gold mining in the Atrato River basin is ...

The harvest moon’s reflection danced through the churning wake of Jakub Bednarek’s 16-foot aluminum jet boat on a recent night along the Columbia River.