What is Civil Disorder?
Civil disorder is when your city stops producing any commerce and shields – it essentially stops all production in that city, although it will still grow. It occurs whenever your city has more unhappy citizens than happy. The city will riot (as seen on the map, where black smoke rises from the city) until you get more citizens happy / not unhappy by getting more luxuries, raising the luxury slider, hiring an entertainer specialist, or anything else to boost happiness.
