Donald Trump's Great Wall on Mexican border will damage environment in 'insane act of self-sabotage'

Making the cement needed for a 1,000-mile concrete wall would emit nearly two million tons of carbon dioxide and cut off endangered animals from part of their territory...
http://www.independent.co.uk/environment/donald-trump-great-wall-mexican-border-damage-environment-insane-self-sabotage-wildlife-mexico-a7548861.html