Walls and barriers have already been constructed across more than 650 miles of the U.S.-Mexico border. These barriers block wildlife migration, cause flooding and damage pristine wild lands, including wildlife refuges, wilderness areas, and national forests. Sierra Club Borderlands advocates for real solutions, such as comprehensive immigration reform with a path to citizenship, that address the root causes of complex border problems.

Border wall construction has blocked access to food and water resources and fragmented animal populations, leaving them vulnerable to genetic isolation, inbreeding and disease.

About Us

We are a coalition representing civil rights, faith, environmental, indigenous, LGBT, and border communities working together to protect the community, culture, land, wildlife, and environmental well-being of the border region.

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Real ID Waiver Authority Compromises Our Borderlands

Real ID Waiver Authority

The unprecedented power granted to the Secretary of Homeland Security (DHS) by Section 102 of the Real ID Act has been used multiple times to "waive in their entirety" dozens of federal laws.

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A growing coalition of organizations across the country that have publicly opposed efforts to expand or replace the border wall.

Our Coalition

A list of local governments and organizations that are against the Wall.

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Film: Ay Mariposa

Ay Mariposa tells a story of La Mariposa, Zulema, and Marianna–three characters in the Lower Rio Grande Valley of Texas whose lives are upended by plans to build a US-Mexico border wall. Watch the Film.

Photo Exhibit: Lens on the Border

Vibrant images of the Southwest landscape, the people, and the communities that have been impacted by walls and would be impacted by more border walls. See the Exhibit.

Storymap: Embattled Borderlands

The borderlands harbor some of North America’s rarest wild species and oldest human cultures. See storymap.

Support the Borderlands Project

Every dollar of your tax-deductible donation will be used to help stop further destruction from border policies and to enhance protections to ensure habitat resiliency in light of climate change impacts.


July 22, 2020

WASHINGTON, DC— Today, the Sierra Club, American Civil Liberties Union and Southern Border Communities Coalition asked the Supreme Court to halt construction of President Trump’s border wall. In the motion, the groups urge the court to lift an…

July 17, 2020

Washington, DC— Yesterday, the Department of Homeland Security’s Office released a report revealing major flaws in the Trump administration’s border wall projects. The report declares that the administration did not use “sound methodology” when…

July 15, 2020

WASHINGTON, D.C.— Today, the House Appropriations Committee marked up its proposed FY21 spending bill. Included in the budget are lines to: Ban federal funding for border wall construction

June 26, 2020

SAN FRANCISCO — The Ninth Circuit Court of Appeals today ruled that President Trump’s attempt to circumvent Congress and transfer of $2.5 billion in military pay and pension funds for border wall construction is unlawful. The court also forcefully…

June 22, 2020

Yuma, AZ— Today, despite a major spike in COVID-19 cases across Arizona, Donald Trump will visit Yuma in an attempt to pivot attention to his border wall project.

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