The Fourth National Climate Assessment for the United States claims that particulate matter (PM2.5) causes heart attacks, deaths, and other harms and that these may be worsened due to climate change.

Forbes contributors publish independent expert analyses and insights. Marianne Krasny is a professor at Cornell University. On July 31, a retired friend rode his bike 22 miles in Chicago only to ...

PM2.5, fine particulate matter, poses serious health risks and is present in most of the world's air. Air pollution reduces global life expectancy by 2.2 years and up to 5 years in South Asia. Air ...

NEW DELHI: Delhi recorded its worst PM2.5 levels of the year on Diwali and the day after, with pollution continuing to blanket the city well into midweek, according to a new analysis by the Centre for ...