On a related note, I had a very early account (probably one of the first 1000 on the site). Years later reddit said they lost some laptop with account info, and so they reset all the passwords. My account was from before there was email. My attempts to get the account back all were met with responses that said "use email reset" and seemed to imply I'd done something wrong. My thanks for being a loyal user for over a decade.
I was surprised to learn recently that there is a cheap and easy to take action that will reduce your exposure to air pollution while driving: Replace your passenger-compartment air filter with a HEPA filter! Most cars made in the last 15 years or so have an air filter right before the AC. You can, for slightly more money, replace this with a HEPA filter. I haven't tested, but this will probably be very effective, since the car is such a small space and there is so much pollution outside.
Replacing the filter is an incredibly easy job on most cars. You don't need any tools or even to open the hood. You just pull out your glove box, and then the filter slides in and out.
I honestly think that in terms of health, this might be the action that has the highest ROI. (Amount of health improvement per amount of time / money invested.)
I was a little apprehensive, but decided to try this. I called my representative as well as both senators. In all cases (3:30pm on a thursday) I just got a voicemail. I left a short message in each case. Nothing could be easier.