Acknowledgements
The authors acknowledge the helpful comments from two anonymous reviewers and discussions with Robert J. Lempert (RAND), Daniel J. Van Abs (Rutgers), Jeff Gebert (U.S. Army Corps of Engineers), and Megan Mullin (Duke). D. J. R. was supported by the Science, Technology, and Environmental Policy (STEP) Program at Princeton University. R. E. K. was supported by NSF grant ICER-1663807.