Hours after his inauguration last Wednesday, incoming president Joe Biden issued an executive order calling for a “pause” to border wall construction within seven days. Most of the newest work is on remote, rugged federal lands that previous administrations bypassed for fence construction. What Restoration Might CostWith fence construction halted, CBP and the Army Corp of Engineers, which jointly oversee fence construction, could end up turning right around to deconstruct projects now in progress. “Trump’s border wall has been hugely destructive to the environment, to wildlife, to habitat connectivity.”Now Biden needs to act quickly, Nicol says. “That scar will always be there.”*Editor’s Note (1/25/21): This sentence was edited after posting to clarify the use of environmental review waivers for border fence construction.