Chicago's cumulative report on pollution sparks debate

Straight out of the starting blocks, Chicago is learning how hard it will be to write an ordinance to reduce a broad array of pollutants built up over many years across a big, diverse city.

As Dubai hosts climate talks, its air pollution soars

Dubai's glitzy skyline was obscured by a blanket of smog rated as "unhealthy" on Sunday as thousands of delegates attended a COP28 conference dedicated to the harmful effects of air pollution.

Curving light in a record-setting way

A team led by scientists and engineers from the University of Wisconsin-Madison, the University of Southern California and Washington University in St. Louis, has created a unique, record-setting material that can bend one ...

All-fiber ellipsometer for nanoscale dielectric coatings

Measuring the refractive index and the thickness of thin films (films with a thickness from less than a nanometer to several microns) is essential to characterize them and improve the performance of sensors and devices that ...

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