Thứ Năm, 30 tháng 3, 2017

NPR News: Where Levees Fail In California, Nature Can Step In To Nurture Rivers

Where Levees Fail In California, Nature Can Step In To Nurture Rivers
After devastating floods, California is looking to spend billions on dams and levees. Some are calling for a new approach to flood control, one that mimics nature instead of trying to contain it.

Đọc thêm tại NPR
at March 30, 2017 at 04:20AM
Health & Science

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