Atmospheric acidity almost back down to preindustrial levels [feedly]

Atmospheric acidity almost back down to preindustrial levels
// Gizmag Emerging Technology Magazine



After increased industrialization in the 1930s, atmospheric acidity levels rose up sharply to a peak in the 1970s, but 40 years after the US and Europe introduced legislation to combat air pollution, acidity in the air has now dropped back down to pre-1930 levels. These figures come out of research by the University of Copenhagen, which used a new technique to measure the pH balance of ice core samples from the Greenland ice sheet, and how it's changed year to year.

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Category: Environment

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