Ohio Regulators Say Fish From Cuyahoga River Are Safe To Eat
The Cuyahoga River flows through Cleveland. In the 1960s, the old industrial city was so polluted that the river repeatedly caught fire. Decades of environmental regulation has made a difference.
Đọc tiếp trên NPR
March 20, 2019 at 05:25PM
Environment
Thứ Tư, 20 tháng 3, 2019
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