Visting Shanghai Now: Its a Blue-Sky, App-Based Life

On a recent visit to Shanghai, I looked up through the canopy of trees in the former French Concession district, and realized the sky was not the customary gray but a bright blue.At a busy intersection near Wukang Mansion, a century-old landmark reminiscent of New York City’s Flatiron Building, the scene was oddly quiet, as barely audible electric cars and bikes whizzed by.And along a particularly hip stretch of Huaihai Road that would usually attract as many foreigners as locals, domestic tourists strolled along sidewalks empty of trash.After a lifetime of loving Shanghai in spite of its pollution, noise and mess, I felt like I had taken off my rose-colored glasses only to discover that the city had turned pink....