Almost half of everyone who lives in the United States breathes unhealthy levels of air pollution, according to the American Lung Association’s annual State of the Air report, released Wednesday.

Although our air is much less polluted now than it was some decades ago, each year around 300 000 people in Europe die prematurely due to air pollution. In 2021, 97% of the people living in urban ...

Air in the U.S. has gotten cleaner for decades, adding years to people's lives and preventing millions of asthma attacks, but nearly half of Americans still live with unhealthy air pollution, a new ...