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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Why Trust Science?

We should trust scientific results because they are based on empirical evidence and theoretical reasoning that have withstood the critical scrutiny of a diverse community of skeptical experts.
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The Hunting of the Quark

A personal reminiscence about the landmark high-energy electron scattering experiments that half a century ago led to the discovery of quarks and to a deepened appreciation of the role of evidence in establishing what is true.
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Another ‘Stab in the Back’ Myth?

Germany’s Weimar Republic of 1919–1933 has important lessons for U.S. democracy in the current transition from the Trump to Biden presidencies
— especially the “stab-in-the-back” myth that was promulgated by nationalist and Nazi opponents to undermine the republic’s legitimacy in the public eye.
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Have We Just Crippled Washington?

Elections usually clear the air, bring new faces to power, offer the dawn of a new day, a fresh beginning, and an opportunity for political healing — but not this year. The electorate has rendered a split and potentially crippling decision, about to be reflected in a sharply divided government.
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