Recent Weather Articles:

When Wind Blows From This Direction, Shanghai’s Pollution Is 5 Times More Likely to Be Toxic

Calvin Quek from Greenpeace analyzed how PM2.5 changes with depending on which way the wind is blowing in Shanghai: The data is simple. When the wind is coming from the industrialized areas to the west of Shanghai, toxic air pollution is more likely. When the wind blows in from the ocean, bad air days are much less likely. In Beijing, the […]

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Winter Is Coming

Another year, another winter. As winter arrives in Beijing and soon in Shanghai, I got to wondering: how much worse is winter air in Beijing? To get to the bottom of it, I analyzed the last eight years of US Embassy PM 2.5 data for Beijing and Shanghai. I found that the capital’s air has […]

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