Notes: On Winter Walks

A Pittsburgh winter makes us wonder whether change is inevitable

Last week, with cracked fingers, I opened a 2009 article from The New York Times: Is Cold Air Cleaner Than Warm Air? by C Claiborne Ray. I didn’t need a definitive answer; I wasn’t sure they’d have one. I really only wanted to believe the colder air out there was better for me—that the sting was worth enduring. At the very least, it felt so …