Ahmed, Azam. “Mexico's President Cancels Meeting With Trump Over Wall.” The New York Times, The New York Times, 26 January 2017, www.nytimes.com/2017/01/26/world/mexicos-president-cancels-meeting-with-trump-over-wall.html. Accessed 2 Apr. 2017.

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Ainsley, Julia Edwards. “Exclusive - Trump Border 'Wall' to Cost $21.6 Billion, Take 3.5 Years to Build: Internal Report.” Reuters, Thomson Reuters, 9 Feb. 2017, www.reuters.com/article/us-usa-trump-immigration-wall-exclusive-idUSKBN15O2ZN. Accessed 26 Mar. 2017. Accessed 26 Mar. 2017

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Alford, Roger P. “Trump's Idea for Mexican Wall Tax Is Illegal and Would Hurt US.” CNN, Cable News Network, 27 Jan. 2017, www.cnn.com/2017/01/27/opinions/taxing-mexico-is-completely-illegal-alford-opinion/. Accessed 26 Mar. 2017.

Bhagwat, Shonil. “The Environmental Costs of Trump’s Wall.” Raw Story, Raw Story, Oct. 2017, www.rawstory.com/2017/02/the-environmental-costs-of-trumps-wall/. Accessed 28 Mar. 2017.

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Bolstad, Erika, and E&E News. “Trump's Wall Could Cause Serious Environmental Damage.” Scientific American, 26 Jan. 2017, www.scientificamerican.com/article/trumps-wall-could-cause-serious-environmental-damage/. Accessed 28 Mar. 2017.

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Brown, Ben. “Trump's Border Battle: How to Pay for the Wall.” Fox Business, Fox Business, 21 Feb. 2017, www.foxbusiness.com/politics/2017/02/21/trump-s-border-battle-how-to-pay-for-wall.html. Accessed 2 Apr. 2017.

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Dickinson, Gerald S. “Perspective | The Biggest Problem for Trump’s Border Wall Isn’t Money. It’s Getting the Land.” The Washington Post, WP Company, 3 Mar. 2017, www.washingtonpost.com/posteverything/wp/2017/03/03/the-biggest-problem-with-trumps-border-wall-isnt-money-its-getting-the-land/?utm_term=.059bb44c7a83. Accessed 2 Apr. 2017.

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“Donald Trump's Mexico Wall: Who Is Going to Pay for It?” BBC News, BBC, 6 Feb. 2017, www.bbc.com/news/world-us-canada-37243269. Accessed 27 Mar. 2017.

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Drew, Kate. “Donald Trump's Controversial Border Wall Could Cost Upwards of $15 Billion.” CNBC, CNBC, 26 Jan. 2017, www.cnbc.com/2015/10/09/this-is-what-trumps-border-wall-could-cost-us.html. Accessed 26 Mar. 2017.

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“Effects of Increased Greenhouse Gas Emissions.” What's Your Impact, 6 Sept. 2016, whatsyourimpact.org/effects-increased-greenhouse-gas-emissions. Accessed 28 Mar. 2017.

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Kessler, Glenn. “Trump’s Dubious Claim That His Border Wall Would Cost $8 Billion.” The Washington Post, WP Company, 11 Feb. 2016, www.washingtonpost.com/news/fact-checker/wp/2016/02/11/trumps-dubious-claim-that-his-border-wall-would-cost-8-billion/?utm_term=.7be8e716c916. Accessed 26 Mar. 2017.

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Johnston, Ian. “Donald Trump's Great Wall on Mexican Border Will Damage Environment in 'Insane Act of Self-Sabotage'.” The Independent, Independent Digital News and Media, 27 Jan. 2017,www.independent.co.uk/environment/donald-trump-great-wall-mexican-border-damage-environment-insane-self-sabotage-wildlife-mexico-a7548861.html. Accessed 28 Mar. 2017.

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Krogstad, Jens Manuel. “5 Facts about Mexico and Immigration to the U.S.” Pew Research Center, 11 Feb. 2016, www.pewresearch.org/fact-tank/2016/02/11/mexico-and-immigration-to-us/. Accessed 2 Apr. 2017.

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Lamothe, Dan, et al. “To Fund Border Wall, Trump Administration Weighs Cuts to Coast Guard, Airport Security.” The Washington Post, WP Company, 7 Mar. 2017, www.washingtonpost.com/world/national-security/to-fund-border-wall-trump-administration-weighs-cuts-to-coast-guard-airport-security/2017/03/07/ba4a8e5c-036f-11e7-ad5b-d22680e18d10_story.html?utm_term=.083f04a7971e. Accessed 26 Mar. 2017.

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Levin, Sam. “'Over My Dead Body': Tribe Aims to Block Trump's Border Wall on Arizona Land.” The Guardian, Guardian News and Media, 26 Jan. 2017, www.theguardian.com/us-news/2017/jan/26/donald-trump-border-wall-tohono-oodham-arizona-tribe. Accessed 2 Apr. 2017.

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Lithicum, Kate. “Mexico's Bargaining Chips with Trump? How about a Corn Boycott.” Los Angeles Times, Los Angeles Times, 29 Mar. 2017, www.latimes.com/world/mexico-americas/la-fg-mexico-corn-boycott-20170329-story.html. Accessed 2 Apr. 2017.

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Madeira, Mary Anne. “Analysis | Under Trump's Plan, Mexico Won't End up Paying for the Wall. You Will.” The Washington Post, WP Company, 10 Feb. 2017, www.washingtonpost.com/news/monkey-cage/wp/2017/02/10/under-trumps-plan-mexico-wont-end-up-paying-for-the-wall-you-will/?utm_term=.c2de1119d455. Accessed 26 Mar. 2017.

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Medically Reviewed by University of Illinois-Chicago, College of Medicine on August 5, 2016 — Written by The Healthline Editorial Team. “The Dangers of Smog: What You Need to Know About Air Pollution.” Healthline, 5 Aug. 2016, www.healthline.com/health/dangers-smog-what-you-need-know-about-air-pollution#overview1. Accessed 31 Mar. 2017.    

             

Porter, Eduardo. “President Trump Wants a Wall? Mexico Is It.” The New York Times, The New York Times, 21 Feb. 2017, www.nytimes.com/2017/02/21/business/economy/mexico-immigration-border-wall.html?_r=2. Accessed 2 Apr. 2017.

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Rogoff, Kenneth. “Trump’s Damaging Border Tax - The Boston Globe.” Boston Globe, Boston Globe Media Partners, LLC, 20 Mar. 2017, www.bostonglobe.com/opinion/2017/03/20/trump-damaging-border-tax/uz9OsK5BJet06pYlOfndsL/story.html. Accessed 26 Mar. 2017.

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Somin, Ilya. “Opinion | Donald Trump’s History of Eminent Domain Abuse.” The Washington Post, WP Company, 19 Aug. 2015, www.washingtonpost.com/news/volokh-conspiracy/wp/2015/08/19/donald-trumps-abuse-of-eminent-domain/?utm_term=.f7afffe0510b. Accessed 2 Apr. 2017.

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Stoltzfoos, Rachel. “ANALYSIS: Border Wall Only Needs To Stop 9-12% Of Illegal Crossings To Pay For Itself.” The Daily Caller, 16 Feb. 2017, dailycaller.com/2017/02/16/analysis-border-wall-only-needs-to-stop-9-12-of-illegal-crossings-to-pay-for-itself/. Accessed 2 Apr. 2017.

Sullivan, Jonathan. “What Would Trump's Wall Mean for Wildlife?” BBC News, BBC, 1 Sept. 2016, www.bbc.com/news/science-environment-37200583. Accessed 28 Mar. 2017.

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Viser, Matt, and Victoria McGrane. “President Trump’s Massive Spending Plans and Tax Cuts Will Challenge Congress Deficit Hawks - The Boston Globe.” Boston Globe, Boston Globe Media Partners, LLC, 8 Feb. 2017, www.bostonglobe.com/news/politics/2017/02/08/president-trump-massive-spending-plans-and-tax-cuts-will-challenge-congress-deficit-hawks/tdOBrS1VwuwAvDxH4pkUHJ/story.html. Accessed 26 Mar. 2017.