lunes, 26 de septiembre de 2016
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.
.. Continue Reading Atmospheric acidity almost back down to preindustrial levels
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