It’s going to cost us a lot to create this impermeable divide. Trump’s “national emergency” declaration is diverting national funds to the construction of this wall. This interruption to the flow of federal defense money will also interrupt the flow of the river, and the whole ecosystem depending on it. Sediment deposit disruption will occur. Water infiltration into the earth, and to plant and animal life on the other side of the wall will suffer. Incredible species like jaguar and ocelot would no longer be able to migrate through their habitat, and the populations would diminish.