So, I was on my way to work today, and was noticing a lot of homes runnign their wood burners, that aren't usually. I was seeing thick smoke plumes from 1 in 2 houses. No big deal, this is our coldest day of the year so far, and lots of casual b urners will be running their stoves/fireplaces today. Lots of folks that don't burn clean, but if you have 3 fires a year, not such a big deal. I then notice an unusually tall, dark plume coming from a chimney a couple blocks down. I get to it, and *gasp*, it's the local fire department burning what must be either the worst wood in the neighborhood, or tires, with a thick gray plume exuding from the chimney, and not dispersing for at least 100 feet up.