During important events in China in recent years — from international summit meetings to sporting events and military parades — the government has resorted to ordering smoggy skies to turn blue. Apparently, the skies dare not disobey.
This involves ordering cars off of the capital's streets, and shutting down factories across much of north China.
But China's leaders seem to realize that clearing skies by diktat is not a solution. As part of its pledge to cap carbon emissions by the year 2030, China is now building what could become the world's largest carbon market.