Houston steps to top of list of U.S. cities with lowest carbon footprints

seeing green

Houston claimed the No. 1 spot among the 50 most visited in the U.S. with the lowest carbon footprint. Sean Pavone/Getty Images

People looking to travel to a sustainable city probably don’t have Texas spots at the top of their lists. Images of oil, cars, and blasting air conditioners spring up. The Texas power grid, no one need remind us, is barely hanging on.

But Texas blew other states away for lowest carbon footprint per capita, landing Houston at the top of the list compiled by travel blog Park Sleep Fly. Austin followed (No. 3), then San Antonio (No. 4) and Dallas (No. 9). Only Florida appeared twice in the top 10, and none matched Texas with four cities.

Among the 50 most visited in the U.S., those with the lowest carbon footprint are:

1. Houston
2. Los Angeles
3. Austin
4. San Antonio
5. Tampa, Florida
6. Salt Lake City
7. Phoenix
8. Miami
9. Dallas
10. Portland, Oregon

Houston is not exactly a green place, with less-than-ideal utilization of public transportation. It and Dallas tied for third place among least sustainable cities in the same report.

“Public transit isn’t the most popular mode of transportation in Houston, but it does exist,” an online publication called TripSavvy drably admits. The city takes credit for employing “nearly one third” of the nation’s oil and gas extraction workers.

On the renewable side, however, Houston claims more than 100 solar energy companies, and at least half of its corporate research and development centers pursue “energy technology and innovation.” And its huge population spreads the load, leaving only 14.6 metric tons of carbon dioxide per resident — the same as Los Angeles. Big cities seem to have an advantage in this rating system.

Austin is just behind Houston at 15 metric tons per capita, neck-and-neck with San Antonio at 15.2. These two cities have smaller populations to distribute their total footprint, but are generally seen as eco-friendly. Austin got a big head start in 1991 with the introduction of the Austin Energy Green Building program — the first of its kind in the whole country — which created an evaluation system for individual building sustainability that’s still in use. Dallas' carbon footprint is the largest of the Texas cities in the ranking, at 16.5 metric tons per capita.

As such a multifaceted issue (especially tied up in economic concerns), sustainability is hard to pin down from city to city. The multiplicity of this list is yet another indicator that Texas as a whole is a much more nuanced place than many people think.

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This article originally ran on CultureMap.

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World Cup's 14-mile Green Corridor to leave lasting impact on Houston

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The FIFA World Cup 2026 Houston Host Committee has announced new details about its massive Green Corridor project, including the many improvements that will outlast the iconic sporting event taking place in Houston this summer.

The Green Corridor will be a 14-mile long verdant artery connecting multiple major landmarks in Houston through safe, walkable paths that include shade trees and other improvements. First conceived in 2024 by the Sustainability Subcommittee led by Elizabeth Carlson, it will unite East Downtown, Downtown, Midtown, the Museum District, and Third Ward through a hike and bike trail as well as METRO Rail stops. Though the Green Corridor is beginning its life as a showcase for the city to visitors attending the FIFA World Cup June 14 -July 4, it will remain a permanent installation for Houstonians to travel the city without cars.

Management of the project is being handled by Impact Houston 26, a portion of the Host Committee empowered by the Harris County-Houston Sports Authority’s Sports Authority Foundation to promote long-term benefits to the city after the World Cup. Funding partners include private corporations as well as civic organizations such as the City of Sugar Land and Rice University.

“The Green Corridor reflects what Impact Houston 26 is all about, using the FIFA World Cup as a catalyst to deliver lasting environmental benefits for our city,” Carlson said in a statement. “Through Impact Houston’s pillar on sustainability, we’re able to collaborate with local stakeholders to create not just demonstrations of resilience and innovation but education and engagement in the community, a meaningful legacy long after 2026.”

The corridor will provide access to both Houston Stadium (also known as NRG Stadium) and the FIFA Fan Festival, as well as improve existing paths like the Columbia Tap Trail in Third Ward. These improvements include the installation of shade structures, native plantings, expanding the tree canopy, air quality monitoring devices, and water and bike repair stations.

Impact Houston 26 is also working with local institutions like the Houston Zoo, Greentown Labs, and Discovery Green to install various educational materials along the Green Corridor.

The Green Corridor initiative.Courtesy rendering

Below is a breakdown of other improvements planned or completed as part of the Green Corridor.

  • Downtown Houston Main Street Promenade: Four permanent shade structures, native plants, and expanding the tree canopy by 154% to be implemented by May 2026. Further shade structures and plantings planned for Texas Avenue.
  • East Downtown Management District: Native tree plantings and landscaping in and around the FIFA Fan Festival site to improve first/last mile connectivity around the Green Corridor.
  • Columbia Tap Trail: Installation of 325 solar lights.
  • Stadium Park/Astrodome and TMC/Dryden plus Fannin South Transit Center: Various landscaping and safety enhancements.
  • Midtown Houston: $1.5 million in landscaping and beautification along the Red Line, including over 80 trees, native plantings, water stations, waste receptacles, crosswalk improvements, and public art installations.

The Green Corridor is only one of the World Cup Host Committee's sustainability initiatives. In January, it announced the "New Year, New Hou" program that provides hospitality businesses such as restaurants and hotels with one of three certifications.

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This article originally appeared on CultureMap.com.

Houston humanoid robotics startup Persona AI hires new strategy leader

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Houston-based Persona AI, a two-year-old startup that develops robots for heavy industry, has hired an automation and robotics professional as its head of commercial strategy.

In his new position, Michael Perry will focus on building Persona AI’s business development operations, coordinating with strategic partners and helping early adopters of the company’s humanoids. Target customers include offshore platforms, shipyards, steel mills and construction sites.

Perry previously served as vice president of business development at Boston Dynamics, where he led market identification for robotics, and as an executive at DJI. He holds a bachelor’s degree in Chinese and government studies from the University of Texas at Austin.

“Now is the perfect time to join Persona AI as we rapidly close the gap between what’s possible in the lab versus what’s driving real commercial value,” Perry says. “Building industry-hardened humanoid hardware and production-deployable AI is only one piece of the puzzle.”

“Getting humanoids into operations for heavy industry will require the systematic commercial and operational work that makes enterprises humanoid-ready and defining the business case, solving the integration challenges, and building the playbook for safe, scalable adoption,” he adds. “That’s what I’m here to build.”

Rice to lead Space Force tech institute under $8.1M agreement

space deal

Rice University has signed an $8.1 million cooperative agreement to lead the U.S. Space Force University Consortium/Space Strategic Technology Institute 4 (SSTI).

The new entity will be known as the Center for Advanced Space Sensing Technologies (CASST) at Rice and will focus on developing innovative remote sensing technologies.

“This investment positions Rice at the forefront of the technologies that will define how we see, understand and operate in space,” Amy Dittmar, Howard R. Hughes Provost and executive vice president for academic affairs, said in a news release. “By bringing together advanced remote sensing, AI-driven analysis and cross-institutional expertise, CASST will help transform raw space data into real-time insight and expand the frontiers of scientific discovery.

The news comes shortly after the Texas Space Commission approved a nearly $14.2 million grant for the newly created Center for Space Technologies at Rice.

David Alexander, director of the Rice Space Institute, will lead CASST. Alexander is also an inaugural member of the Texas Aerospace Research and Space Economy Consortium and he serves on the boards of the Houston Spaceport Development Corporation, SpaceCom and the Sasakawa International Center for Space Architecture. The team also includes Rice professors and staff Kevin Kelly, Tomasz Tkaczyk, Kenny Evans, Kaden Hazzard, Mark Jernigan and Vinod Veedu, and collaborators from Houston-based Aegis Aerospace, University of California, Los Angeles, University of California, Santa Barbara and Georgia Institute of Technology.

In addition to bringing new space sensor innovation, the team will also work to miniaturize sensors while developing and implementing low-resource fabrication techniques, according to Rice. The researchers will also utilize AI and machine learning to analyze sensor data.

The U.S. Space Force uses space sensors to provide real-time information about space environments and assess potential threats. CASST is the fourth Space Strategic Technology Institute established by the USSF.

“Rice has helped shape the modern era of space research, and CASST marks a bold step into what comes next,” David Sholl, executive vice president for research at Rice, said in a news release. “As space becomes more contested and more essential to daily life, the ability to rapidly sense, interpret and act on what’s happening beyond Earth is critical. This center brings together the materials, engineering and data science innovations needed to deliver that capability."

The USSF University Consortium works with academic teams to develop breakthrough technologies and speed their transition into real-world applications for the U.S. Space Force.

The recent Rice award is part of $16 million over about three years. The USSF also signed a cooperative agreement with the University of Arizona in February.

The consortium has also helped facilitate several technological and commercial transitions over the last two years, including a $36 million commercial contract awarded to Axiom by Texas A&M University's in-space operations team and a follow-on $6 million contract to Axiom to build on technology developed by the University of Texas.

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