A new Harvard University study found that, in at least 19 states plus Washington, D.C., burning gas now kills more people than coal because of exposure to a deadly type of fine particulate matter known as PM2.5 that lingers in the air and lodges in lung tissue.
https://ift.tt/3f0H0OC via /r/science https://ift.tt/3ek6Uh9
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