“…Some scientists have questioned whether Beijing’s highly publicized air quality restrictions actually had an impact. This new data shows clearly that they did. “After the authorities lifted the traffic restrictions, the levels of these pollutants shot right back up,”…The steep decline in certain pollutants surprised the researchers. In a preliminary analysis of the data, the effect seemed to be minimal…The reductions only became noticeable when the investigators focused tightly on the Beijing area….” Full Slice

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