Wall an environmental disaster Thanks to Joan Ellis for background explaining waves of Central American families seeking safety north of the border in her Feb. 21 OpEd. In addition to the hardship on people imposed by our immigration policy, which has callously separated many hundreds of children from their parents, the massive wall pushed by President Donald Trump would have a disastrous effect on the environment. According a National Geographic article, construction of a border wall would bisect the geographic range of 1,506 native animals and plants, including 62 species that are listed as critically endangered.