蜜桃传媒

 quotes Stuart Evans about Chicago’s first dust storm in over 90 years. “In a place like Illinois where the source of the dust is agricultural … trends in dust can be very strongly controlled by changing farming practices,” said Evans. “If you change how you till the soil or when you till the soil or whether you have a windbreak or whether you use a land cover to hold the soil down. There are lots of human choices that go into affecting how much dust there is in the eastern part of the U.S.”