Tribal Nations Get Left Out As U.S. Air Pollution Has Declined

Although air pollution in the U.S. had been on a steady decline over the last two decades (until recently), the benefits have not been evenly distributed. A new analysis of data between 2000 and 2018 …Although air pollution in the U.S. had been on a steady decline over the last two decades (until recently), the benefits have not been evenly distributed. A new analysis of data between 2000 and 2018 …