D.C. experienced some of the worst air quality on record this week. Experts say this could be a taste of the climate future.

Outdoor activities at D.C. Public Schools have been canceled Thursday, and the National Zoo will be closed.

What is a Code Red and why, maybe, you shouldn’t go for that run outside.

D.C. has an adult smoking rate of 14.6 percent, though it’s higher for black and LGBT Washingtonians.

The FTA ordered WMATA to complete 47 actions.

And one person was taken to the hospital for possible smoke inhalation after the incident yesterday.

FTA officials have investigated 15 safety events on Metrorail from April 23 – May 10.

“We’re not just talking about clubs. It’s a much broader issue.”

A minor smoke incident caused brief delays on the Red Line this afternoon.

UPDATE (3:45 p.m.): According to D.C. Fire and EMS, firefighters are currently investigating a “busted pipe” under the pavement. It does not appear to be dangerous, but the investigation is still ongoing. We’d avoid the area for a bit while things get cleared up.