A series of live maps from Windy.com highlighted which parts of the U.S. were experiencing elevated levels of air pollution on Friday. The maps showed data for multiple types of pollutant, including ...

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For the past 18 months, we've endured the constant din of construction from the property directly across the street.

India has reversed a decade-old mandate to install $30 billion worth of clean-air equipment, easing sulphur emission rules ...