Beijing red alert for smog has a silver lining
Thursday, December 10, 2015 - 05:30
in Earth & Climate
Left, is a view of Tiananmen Square on a smoggy Dec. 1, 2015. At right, the same scene two days later after a shift in the weather temporarily cleared the skies. This week, Beijing is blanked in choking smog once again, this time prompting the first ever red alert for pollution.