Opponents of the proposed wall on the Mexican border often express their concerns in terms of people affected.
But a wall that big would have an effect on the natural environment as well, and the has gone to court to make its case.
CBD lists 93 endangered, threatened, and candidate species that could be adversely affected by the construction of the wall and patrols around it. Brian Segee is a senior attorney at the center, the co-author of the center's report on animals impacted by the wall, and our guest.
