Debate rages over which water bodies in the US are protected under federal law by the Clean Water Act. Science shows that isolated wetlands and headwater systems provide essential downstream services, but convincing politicians is another matter.
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References
The Clean Water Act 33 US C. § 1201.
33 US C. § 1362(14).
Solid Waste Agency of Northern Cook County v. COE [2001]; 531 US 159.
United States v. Rapanos 547 [2006]; US 715.
82 Fed. Reg. 12532 (6 March 2017).
80 Fed. Reg. 37054 (29 June 2015).
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80 Fed. Reg. 2100 (15 January 2015).
Hopkinson, J. Obama's water war. Politico (27 May 2015); http://go.nature.com/2wBgcvQ
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Ryan, M. Science versus political realities. Nature Geosci 10, 806–808 (2017). https://doi.org/10.1038/ngeo3049
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DOI: https://doi.org/10.1038/ngeo3049