Nie Feng used to toss his rubbish outside his Shanghai flat without a thought while rushing to work, but saving China from a garbage crisis now requires him to consult a complex diagram each morning. On July 1, Shanghai launched…

Nie Feng used to toss his rubbish outside his Shanghai flat without a thought while rushing to work, but saving China from a garbage crisis now requires him to consult a complex diagram each morning. On July 1, Shanghai launched…