The US halted thousands of departures for more than four hours on Friday after a communications issue affected the regional air traffic control centers that direct planes between airports nationwide, and officials called it "extraordinary circumstances," but thankfully, flights are back up and running now.
Delhi PM2.5 levels high citywide
While the US dealt with flight chaos, Delhi's air quality stayed in the "very poor" zone.
Out of 59 monitoring spots, seven showed severe pollution and PM2.5 levels were high almost everywhere.
It's another reminder that tackling pollution is urgent for the city's health and daily life.