Here's how Houston ranks on annual list of greenest cities in the US

room for improvement

Yikes, Houston is very far from being considered among the greenest cities in the country. Photo via Getty Images

Bad news, Houston. The Bayou City is the third worst metro when it comes to the country's greenest cities.

According to WalletHub's recently released Greenest Cities in America report, Houston is No. 98 out of 100 of the largest cities that were ranked in the study, which was based on information from the U.S. Census Bureau, U.S. Environmental Protection Agency, The Trust for Public Land, U.S. Department of Energy - The Alternative Fuels Data Center, and more.

“There are plenty of things that individuals can do to adopt a green lifestyle, from recycling to sharing rides to installing solar panels on their homes. However, living in one of the greenest cities can make it even easier to care for the environment, due to sustainable laws and policies, access to locally-grown produce and infrastructure that allows residents to use vehicles less often," says Chip Lupo, WalletHub Analyst. "The greenest cities also are better for your health due to superior air and water quality.”

Houston scored 36.88 points out of 100, and comes in dead last on the environment ranking. Here's how the city performs when it comes to the other metrics:

  • No. 87 for transportation
  • No. 52 for energy sources
  • No. 61 for lifestyle and policy
  • No. 91 for greenhouse-gas emissions per capita
  • No. 30 for percent of green space
  • No. 86 for median air quality index
  • No. 97 for annual excess fuel consumption
  • No. 56 for percent of commuters who drive
  • No. 39 for walk score
  • No. 33 for farmers markets per capita

The big winners on the report are mostly on the West Coast. Of the top 10, six cities are from California. These are the greenest cities, per the report:

  1. San Diego, California
  2. Washington, D.C.
  3. Honolulu, Hawaii
  4. San Francisco, California
  5. San Jose, California
  6. Seattle, Washington
  7. Oakland, California
  8. Portland, Oregon
  9. Fremont, California
  10. Irvine, California
Texas isn't seen on the list until Austin, which ranked No. 26. The rest of the major Lone Star State major metros include San Antonio at No. 44, Fort Worth at No. 76, and Dallas at No. 81.While this report is pretty damning, there's not a general consensus that all hope is lost for Houston when it comes to being green. Last year, the city was ranked as having the lowest carbon footprint, based on a report from Park Sleep Fly.

However, WalletHub's report has pretty consistently ranked Houston low on the list. Last year, Houston was slightly higher up at No. 95. In 2022 and 2021, the city claimed the No. 93 spot.

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This article originally ran on EnergyCapital.

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For 713 Day, UXD created carbon-absorbing mural "(HUE)STON HARMONY" in collaboration with Downtown Houston+ and local artist David Maldonado. Photo courtesy of Egidio Narvaez

Artist collective brings carbon-absorbing murals to Houston

WHEN FINE ART MEETS FRESH AIR

Anthony Rose, the CEO of creative agency United By Design, is on a mission to brighten Houston’s urban spaces and improve the city’s air quality one carbon-absorbing mural at a time.

Rose originally founded United By Design, or UXD, in 2019 to connect muralists like himself and commercial businesses seeking to beautify their spaces and form brand identities. After creating vibrant murals for Lockhart Elementary School, the Houston Astros, and Smoothie King, Rose expanded UXD’s vision to include environmental sustainability in their artistic collaborations in 2022.

“This city’s vibrant art scene and growing focus on sustainability makes it an ideal location for our projects,” Rose says. “We’re not just creating eco-friendly murals, we’re reimagining how art can actively contribute to environmental solutions.”

In search of ecologically-conscious paints, Rose formed a partnership with Spain-based, natural paint company Graphenstone. Rose says he was drawn to the company’s eponymous Graphenstone coating because of its nontoxic ingredients and exclusively uses the product for UXD’s carbon-absorbing murals.

"Between Land and Sky" by artist David Maldonado was UXD's first carbon-absorbing painting. Photo courtesy of Dario DeLeon and Tommy Valdez

The Graphenstone coating consists of a limestone base which goes through a process called photocatalysis, during which carbon dioxide from the atmosphere is absorbed into the surface, and is then sealed in with graphene, a thin layer of carbon atoms. The murals absorb carbon dioxide throughout the coat’s drying process which typically takes 30 days.

“Each of our murals absorbs about 1600 grams of CO2 during that curing process which is the equivalent daily absorption of about 33 growing trees,” Rose explains.

UXD’s largest carbon-absorbing mural to date is a floor-to-ceiling panorama in downtown Houston’s historic Mellie Esperson building, home to the company’s new creative hub. Painted by Houston-born artist Emily Ding, the mural is a tribute to the establishment’s namesake: an innovative, early 20th century entrepreneur who constructed the opulent building.

"Future's Past" by Emily Ding in partnership with UXD tells the story of the Mellie Esperson building. Photo courtesy of Dario DeLeon

Rose says UXD plans to expand their carbon-absorbing murals project in collaboration with more local artists and establishments, while creating an artist-in-residency program themed around sustainability. Though Rose acknowledges in the grand scheme of carbon pollution these murals are not a silver bullet, he says the non-toxic paints are encouraging conversations about how artists can be conservation-minded.

“We’re trying to figure out how art as a messaging tool can help break down scientific data, a language not many people practice daily, can break down barriers and help bridge the gap to a more intuitive knowledge of sustainability,” Rose says. “We’re bringing the community together, helping them feel empowered, and giving them actionable information to help them live more sustainable lives.”

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Axiom Space launches semiconductor and astronaut training initiatives

space projects

Axiom Space, a Houston-based commercial spaceflight and space infrastructure company, has launched initiatives in two very different spheres — semiconductors and astronaut training.

On the semiconductor front, Axiom has signed a memorandum of understanding with Japanese chemical company Resonac Corp. to collaborate on semiconductor R&D and manufacturing projects carried out in space. Among Resonac’s products are materials used in chip manufacturing.

Axiom said the deal “paves the way toward leveraging microgravity to advance next-generation chip technologies and accelerate the in-space manufacturing market.”

Under the agreement, Axiom and Resonac will explore the potential production of semiconductor materials and chip packaging in microgravity and low-Earth-orbit environments.

“The unique environment of space offers immense potential for advancing semiconductor materials, especially in crystal growth,” Masato Fukushima, Resonac’s chief technology officer, said in a news release.

The deal will also extend Resonac’s work with Axiom on the development of molding compounds that can reduce “soft errors” when semiconductor devices are exposed to space radiation.

“Our collaboration with Resonac underscores how Axiom Space is enabling global corporations from around the world to leverage space to drive manufacturing innovation across critical technology sectors such as semiconductors,” Axiom astronaut Koichi Wakata, the company’s chief technology officer, said.

In the astronaut training arena, Axiom has tapped Portuguese physiologist Emiliano Ventura as its first “Project Astronaut.” Ventura will apply his expertise in human performance to a pilot program aimed at testing six-month astronaut training protocols.

“His goal is to participate in a future mission and explore, with scientific depth and curiosity, how the human body adapts to microgravity, contributing fresh insights to the current body of research in space physiology,” Axiom said.

Ventura has helped several Axiom crewmembers with physiological needs before and after missions aboard the International Space Station.

Axiom said Ventura’s pilot program will study astronauts’ physiological responses to microgravity during spaceflight. The program eventually will benefit Axiom astronauts heading to the world’s first commercial space station, which is being built by Axiom.

Michael López-Alegria, Axiom’s chief astronaut, said he and the company’s two other astronauts will train with Ventura. The Project Astronaut initiative “strengthens our commitment to enabling safe, effective, and inspiring commercial space missions while supporting scientific objectives worldwide.” López-Alegria said.

Houston scientist launches new app to support mental health professionals

App for that

One Houston-based mental health scientist is launching a new app-based approach to continuing education that she hopes will change the way doctors, therapists, and social workers evolve in their field.

The app, MHNTI, is named for its parent company, the Mental Health Network & Training Institute. It's a one-stop shop for mental health professionals to find trainers, expert consultations, local providers, webinars, and other tools related to licensure certification and renewal.

Free and paid tiers offer different levels of access, but both offer doctors, counselors, and more an easier way to engage with continuing education. When a mental health professional is looking to expand their knowledge in a way that coincides with CE requirements, MHNTI provides it; as easy as using Amazon.

"We built MHNTI for the clinicians craving meaningful, ongoing training that fits real-life schedules," said Dr. Elizabeth McIngvale. "MHNTI is more than an app. It's a movement to support mental health professionals at every career stage."

McIngvale, the daughter of celebrated Houston entrepreneur Jim "Mattress Mack" McIngvale, co-founded MHNTI after becoming one of the leading experts on obsessive-compulsive disorder (OCD) in the United States. Born with the condition herself, she suffered greatly as a child to the point that she required extensive repetitive rituals daily just to function. She responded to exposure with response prevention (ERP) treatment, earned her Ph.D. from the University of Houston, and is now the director at the OCD Institute of Texas.

This is not the first time she used the internet to try to improve the mental health industry. In 2018, she launched the OCD Challenge website, a free resource for people with OCD.

McIngvale's co-founder is New York-based doctor, entrepreneur, and author Lauren Wadsworth, another expert in OCD and other anxiety disorders. Like McIngvale, she understands that the labyrinthian world of continuing education can keep mental health professionals from achieving their potential.

"Mental health providers are often overworked and under-resourced. MHNTI is here to change that," said Wadsworth. "We're creating a space where clinicians can continuously learn, grow, and feel supported by experts who understand the work firsthand."

MHNTI is available in the App Store, Google Play, and for desktop.

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A version of this article originally appeared on CultureMap.com.

Announcing the 2025 Houston Innovation Awards finalists

Inspirational Innovators

InnovationMap is proud to reveal the finalists for the 2025 Houston Innovation Awards.

Taking place on November 13 at Greentown Labs, the fifth annual Houston Innovation Awards will honor the best of Houston's innovation ecosystem, including startups, entrepreneurs, mentors, and more.

This year's finalists were determined by our esteemed panel of judges, comprised of past award winners and InnovationMap editorial leadership.

The panel reviewed nominee applications across 10 prestigious categories to determine our finalists. They will select the winner for each category, except for Startup of the Year, which will be chosen by the public via online voting launching later this month.

We'll announce our 2025 Trailblazer Award recipient in the coming weeks, and then we'll unveil the rest of this year's winners live at our awards ceremony.

Get to know all of our finalists in more detail through editorial spotlights leading up to the big event. Then, join us on November 13 as we unveil the winners and celebrate all things Houston innovation. Tickets are on sale now — secure yours today.

Without further ado, here are the 2025 Houston Innovation Awards finalists:

Minority-founded Business

Honoring an innovative startup founded or co-founded by BIPOC or LGBTQ+ representation:

  • Capwell Services
  • Deep Anchor Solutions
  • Mars Materials
  • Torres Orbital Mining (TOM)
  • Wellysis USA

Female-founded Business

Honoring an innovative startup founded or co-founded by a woman:

  • Anning Corporation
  • Bairitone Health
  • Brain Haven
  • FlowCare
  • March Biosciences
  • TrialClinIQ

Energy Transition Business

Honoring an innovative startup providing a solution within renewables, climatetech, clean energy, alternative materials, circular economy and beyond:

  • Anning Corporation
  • Capwell Services
  • Deep Anchor Solutions
  • Eclipse Energy
  • Loop Bioproducts
  • Mars Materials
  • Solidec

Health Tech Business

Honoring an innovative startup within the health and medical technology sectors:

  • Bairitone Health
  • Corveus Medical
  • FibroBiologics
  • Koda Health
  • NanoEar
  • Wellysis USA

Deep Tech Business

Honoring an innovative startup providing technology solutions based on substantial scientific or engineering challenges, including those in the AI, robotics and space sectors:

  • ARIX Technologies
  • Little Place Labs
  • Newfound Materials
  • Paladin Drones
  • Persona AI
  • Tempest Droneworx

Startup of the Year (People's Choice)

Honoring a startup celebrating a recent milestone or success. The winner will be selected by the community via an online voting experience:

  • Eclipse Energy
  • FlowCare
  • MyoStep
  • Persona AI
  • Rheom Materials
  • Solidec

Scaleup of the Year

Honoring an innovative later-stage startup that's recently reached a significant milestone in company growth:

  • Coya Therapeutics
  • Fervo Energy
  • Koda Health
  • Mati Carbon
  • Molecule
  • Utility Global

Incubator/Accelerator of the Year

Honoring a local incubator or accelerator that is championing and fueling the growth of Houston startups:

  • Activate
  • Energy Tech Nexus
  • Greentown Labs
  • Healthtech Accelerator (TMCi)
  • Impact Hub Houston

Mentor of the Year

Honoring an individual who dedicates their time and expertise to guide and support budding entrepreneurs. Presented by Houston Community College:

  • Anil Shetty, Inform AI
  • Jason Ethier, EnergyTech Nexus
  • Jeremy Pitts, Activate
  • Joe Alapat, Liongard
  • Neal Dikeman, Energy Transition Ventures
  • Nisha Desai, Intention

Trailblazer Recipient

  • To be announced
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Interested in sponsoring the 2025 Houston Innovation Awards? Contact sales@innovationmap.com for details.

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