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Did You Know: A border wall between the U.S. and Mexico would cause mass ecological damage? | Office for Science and Society - McGill University
![Al Jazeera English on Twitter: "Trump promised to build a wall along US-Mexican border.This map shows where fences are already in place https://t.co/U7jUqd47pQ https://t.co/PSjRbAGovg" / Twitter Al Jazeera English on Twitter: "Trump promised to build a wall along US-Mexican border.This map shows where fences are already in place https://t.co/U7jUqd47pQ https://t.co/PSjRbAGovg" / Twitter](https://pbs.twimg.com/media/C3K66HTXUAEGHad.jpg)
Al Jazeera English on Twitter: "Trump promised to build a wall along US-Mexican border.This map shows where fences are already in place https://t.co/U7jUqd47pQ https://t.co/PSjRbAGovg" / Twitter
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