A thought about worsening air pollution: in a way it's like the financial abuses that set the stage for the 2008 crisis. Banking deregulation played some role in those abuses, but the bigger factor was failure to update regulation for a changing system 1/ nytimes.com/interactive/20…
Somewhat similarly, reduced enforcement, especially under Trump, is part of the problem here, but also true that increased driving and other factors really need a policy response, which we aren't getting 2/
This is a big policy failure: the research I've seen says that the human and economic costs of air pollution are huge, even ignoring climate change 3/
