Does the US really have the “cleanest air in the world”? Uh, here’s the science - Earth News Report
On Monday, President Trump tweeted out a map, exclaiming that American air is the best air by far. That's not exactly true. The map, grabbed from a World Health Organisation report out earlier this year, is an estimate of how much ultra-fine particulate matter (PM) people are breathing in around the world. This kind of
