• [2013-06-10] Amount of dust blown across the West is increasing, says CU-Boulder study
  + http://news.nationalgeographic.com/news/2013/13/130612-united-states-west-science-dust-storms-environment/ + http://www.colorado.edu/news/releases/2013/06/10/amount-dust-blown-across-west-increasing-says-cu-boulder-study + http://www.sciencedaily.com/releases/2013/06/130610193033.htm + http://www.sciencedirect.com/science/article/pii/S1875963713000281
  in Tietoukka Monitor > 2013 > 2013-24 with dust_storms usa

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