An examination of federal personnel changes in the Trump era

According to a new analysis, the total number of people employed full-time by the U.S. federal government remained largely unchanged by the end of the Trump administration, but with significant variation in growth, downsizing, ...

Subway stations near river tunnels have worst air quality

Subway riders waiting in stations near tunnels that run below the city's rivers are exposed to higher levels of hazardous pollutants than are found in other stations. The "river-tunnel effect," as researchers call it, may ...

'Big muscles and wrinkled skin': The Hercules pseudoscorpions

Frida Kahlo, Arnold Schwarzenegger and Hercules—they are all among the namesakes of the new pseudoscorpions recently described in the Arachnology Department at the Museum der Natur Hamburg. The prominent names suit the ...

3M to phase out 'forever chemicals' PFAS by 2025

US industrial giant 3M announced Tuesday it will phase out production of so-called "forever chemical" PFAS in light of tightening regulation connected to harmful health effects from their use.

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