Low-Oxygen Waters Off Washington, Oregon Coasts Risk Becoming

Ocean's Oxygen Starts Running Low

Temperature, oxygen, and aragonite saturation state in the surface

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Environmental News Network - Climate

Headwaters of the Metolius River drop as drought persists

Environmental News Network - Ecosystems

Oceans under threat « World Ocean Review

Frontiers Interactive Effects of Hypoxia and Temperature on

When are waters considered hypoxic?

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Dead zone (ecology) - Wikipedia

Unusually large' toxic algal bloom covers 30-mile stretch of the