Two new papers on environmental expertise, authority, and accountability, with a focus on coastal planning in Louisiana: Ned Randolph explores physical models of the Mississippi River (https://www.tandfonline.com/doi/full/10.1080/09644016.2022.2113357), I highlight computer modelling and metrics (https://www.tandfonline.com/doi/full/10.1080/09505431.2022.2151427)