Why Seattle Had The Worst Air Quality In The World At Some Points This Summer
NPR's Ari Shapiro talks with Cliff Mass, professor of atmospheric sciences at the University of Washington, about the cause of this summer's extremely smoky air in the Pacific Northwest.
Đọc thêm tại NPR
at September 1, 2018 at 03:29AM
Health & Science
Thứ Bảy, 1 tháng 9, 2018
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