Wildfire Smoke in the San Juans

Increasing frequency and intensity of wildfires in the Pacific Northwest have led to dangerous levels of smoke in the San Juan Islands. A leading air-pollution authority discusses potential health effects, particulate measurements, and mitigation measures to reduce exposures.
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The Fourth Wave Is Here

Based on county, state and national coronavirus data, the fourth wave of the pandemic is well under way, but it will hopefully be blunted by the wave of Covid-19 vaccinations now gaining steam.
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Another Battle of the Bulge?

In our continuing battle with the novel SARS-CoV-2 coronavirus, the United States may soon be facing a serious counter-attack coming from variant virus strains, despite encouraging progress on vaccinations, but we must never surrender.
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About Orcas Currents

An online magazine of occasional thoughtful articles about science, technology, environment, culture and policy, many written by contributors to the highly successful Orcas Currents lecture series.

Editor: Michael Riordan

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