scholarly journals Comment on “Legacy nitrogen may prevent achievement of water quality goals in the Gulf of Mexico”

Science ◽  
2019 ◽  
Vol 365 (6455) ◽  
pp. eaau8401 ◽  
Author(s):  
Tristan C. Ballard ◽  
Anna M. Michalak ◽  
Gregory F. McIsaac ◽  
Nancy N. Rabalais ◽  
R. Eugene Turner

Van Meter et al. (Reports, 27 April 2018, p. 427) warn that achieving nitrogen reduction goals in the Gulf of Mexico will take decades as a result of legacy nitrogen effects. We discuss limitations of the modeling approach and demonstrate that legacy effects ranging from a few years to decades are equally consistent with observations. The presented time scales for system recovery are therefore highly uncertain.

Author(s):  
Jhih-Shyang Shih ◽  
Charles T. Driscoll ◽  
Dallas Burtraw ◽  
Huizhong Shen ◽  
Richard A. Smith ◽  
...  

Author(s):  
Guadalupe de la Lanza-Espino ◽  
Salvador Hernández-Pulido ◽  
Norma Sánchez-Santillán ◽  
José Luis Carbajal-Pérez

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