'Fire inversions' lock smoke in valleys

Smoke from a summer wildfire is more than just an eye-stinging plume of nuisance. It's a poison to the lungs and hearts of the people who breathe it in and a dense blanket that hampers firefighting operations.

Building water-efficient cities

How much water single-family residences use is closely related to a community's built environment, according to a University of Arizona-led study. In particular, design factors such as vegetated land cover, housing density ...

A new view of wintertime air pollution

The processes that create ozone pollution in the summer can also trigger the formation of wintertime air pollution, according to a new study from researchers at the University of Colorado Boulder and NOAA, in partnership ...

Road salts could endanger ecosystems, water supplies

Lakes, rivers and some private wells are becoming saltier, largely thanks to high levels of road salt sprinkled on streets during winter. According to an article in Chemical & Engineering News (C&EN), the weekly newsmagazine ...

Dust threatens Utah's 'greatest snow on earth'

Utah's Wasatch Mountains are famous for having "The Greatest Snow on Earth." Snow-seekers in pursuit of world-class skiing and snowboarding contribute over a billion dollars annually to the economy. Snowmelt also provides ...

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