A sonoran pronghorn in a field in Southern Arizona.
A border wall covers nearly all the northern boundary of El Pinacate and Gran Desierto de Altar Biosphere Reserve, in Sonora.
The committee says the UNESCO Biosphere Reserve has highly diverse plants and wildlife, including endemic freshwater fish species and the Sonoran Pronghorn — only found in northwest Sonora and southwest Arizona.
The wall blocks the Pronghorn’s migratory routes and threatens the species’ long-term viability, which the committee says may cause the area to qualify as “in danger” under the World Heritage Convention.
As well, the committee said the U.S. failed to address the broader environmental consequences of the border wall and mandated that Mexico and the US develop and implement an urgent action plan to mitigate the impacts and restore ecological connectivity in the region.
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