Border Wall

The Jacumba Hot Springs border wall in California.

Trump’s new $1.2 billion border wall segment to cut through nature preserve

Opponents expressed concerns about the wall's impact on preserving wildlife and serene views.

August 26, 2026 - inewsource

Dry stretch of road with Presidio sign.

Texas town says border wall could compromise flood prevention infrastructure

Presidio is suing the Trump administration, saying its plan to replace a levee with a concrete wall could put the town at risk of catastrophic floods.

July 23, 2026 - Pulptastic

Desert landscape with cactus in foreground and mountains in background in Big Bend National Park, Texas.

DHS Waived 28 Environmental and Historic Protection Laws to Expedite Building of South Texas Border Wall

The barrier would run through Big Bend National Park, raising alarms among environmentalists who say it will harm wildlife in the region.

February 19, 2026 - Inside Climate News

Border Wall

The Failures of the U.S.-Mexico Border Wall

Trump's promised "impenetrable" wall has proven to be anything but.

March 7, 2021 - High Country News

New York City Air Conditioners

Historic Climate Legislation Included in COVID Relief Spending Deal

The $900 billion COVID relief bill along with a $1.4 trillion omnibus bill allowed for the inclusion of unrelated legislation and funding for 2021, from border wall spending to phasing-out some of the most potent greenhouse gas pollutants.

December 23, 2020 - The Hill

San Pedro River

The Environmental Consequences of the Arizona Border Wall

A segment of the planned U.S.-Mexico border wall would cut across the San Pedro River and threaten the area’s wildlife and plants.

January 14, 2020 - Herald/Review

We Build the Wall

Judge Shuts Down Right Wing Group's Extra-Governmental Border Wall Construction

Concerns about the impact on a nearby butterfly preserve, a judge in Texas finally shutdown private construction of a wall along the U.S.-Mexico border.

December 5, 2019 - The Washington Post

Wall Prototypes

Report: Trump Willing to Break the Rules to Build Border Wall

Transit agencies, affordable housing developers, and many others might be envious of the kind of leeway sources say President Trump is willing to grant in the name of project delivery.

August 29, 2019 - The Washington Post

Border

Trump Administration Targets California High-Speed Rail After Border Wall Lawsuit

The Trump administration has canceled a nearly $1 billion grant assigned to the California high-speed rail project and is attempting to get the state to return the $2.5 billion it has already spent on the $77 billion project.

February 21, 2019 - The New York Times

U.S.-Mexico

What President Trump's Border Wall Can't Stop

William H. Frey, a demographer with Brookings, argues that racial diversity is a good thing for the country by many measures. Trump's wall would make it harder to benefit from demographic changes, but changes is still coming.

February 19, 2019 - Brookings: The Avenue

Border Wall

Property Rights Battle Expected Along Trump's Border Wall

Property acquisition in Texas won't come easy.

January 17, 2019 - The Washington Post

Big Bend National Park

2018's Most Endangered Rivers

The American Rivers advocacy organization this week released their annual list of most endangered rivers in the United States.

April 11, 2018 - American Rivers

El Paso

City as Border Zone

Architects Ersela Kripa and Stephen Mueller, founders of El Paso firm AGENCY, discuss the reality and rhetoric of the US–Mexico border.

March 7, 2018 - The Architectural League

Wall Prototypes

Homeland Security Waives More Than 30 Laws to Expedite Border Wall

In the drive to begin construction in New Mexico, the Trump Administration has bypassed dozens of federal environmental regulations.

February 2, 2018 - The Architect's Newspaper

Imperial Beach Border

Trump Administration Will Request $18 Billion for the Border Wall

New details are emerging regarding the Trump Administration's intentions for the long-promised wall between the United States and Mexico.

January 8, 2018 - The Daily Caller

Wall Prototypes

The Year's Architecture Controversies Include Multiple Planning Crossovers

The list of the 12 most "memorable" and "outrageous" controversies in the field of architecture looks a lot like a list of controversies in the field of planning.

December 10, 2017 - The Architect's Newspaper

U.S.-Mexico Border

Cards Against Humanity Vs. the Trump Administration

The game company has pledged to obstruct Trump's proposed border wall.

November 16, 2017 - The Washington Post

Prototypes for Trump's Border Wall Now on View in California

The U.S.-Mexico border between San Diego and Tijuana received eight controversial additions over the weekend.

October 24, 2017 - New York Daily News

U.S.-Mexico

Four Companies Selected to Build Prototypes of Trump's Border Wall

In what was called a "significant milestone" by U.S. Customs and Border Protection officials, Trump's controversial border wall project has shown its first tangible results.

September 1, 2017 - The Washington Post

Imperial Beach Border

Department of Homeland Security Will Skip Environmental Review for the Border Wall

Also, the House of Representatives has approved the funding president trump wants for the wall, but the Senate is likely to balk.

August 2, 2017 - Associated Press via Denver Post

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Senior Planner

City of Thousand Oaks

Community Development Director

City of Wisconsin Rapids

Professor of Urban Planning

Harvard University Graduate School of Design

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.