When Beijing hosted the 2008 Summer Olympic Games, China was determined to welcome visitors from around the world with blue skies and fresh air. Authorities shut down or cut production at almost all the factories in and around the capital. The government launched measures to cut traffic congestion by half that are still in place today. 

Operation “Olympic Blue” worked. The city notorious for its smog was transformed for an entire month. More than a decade later, China has to pull off the feat again when it hosts the winter games next year. This time might be more challenging. ..

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