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Houston receives abysmal ranking on 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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Texas's evolving energy landscape means affordability for residents, a new report finds. Photo via Pexels

Here's how Texas ranks when it comes to energy affordability

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The Lone Star State is an economical option when it comes to energy costs, one report has found.

WalletHub, a personal finance website, analyzed energy affordability across the 50 states in its new report, Energy Costs by State in 2024, which looked at residential energy types: electricity, natural gas, motor fuel and home heating oil.

Texas ranked as the fourth cheapest state for energy, or No. 47 in the report that sorted by most expensive average monthly energy bill. Texans' average energy cost per month is $437, the report found.


Source: WalletHub

Here's how Texas ranked in key categories, with No. 1 being the most expensive and No. 50 being the cheapest:

  • No. 27 – price of electricity
  • No. 15 – price of natural gas
  • No. 44 – natural-gas consumption per consumer
  • No. 40 – price of motor fuel
  • No. 16 – motor-fuel consumption per driver
  • No. 49 – home heating-oil consumption per consumer

With the most expensive state — Wyoming — being over four times the cost compared to the cheapest state — New Mexico, the difference between energy costs between states varies greatly, but the reason for that isn't exactly a mystery.

“Energy prices vary from state to state based on several factors including energy sources, supply and demand, energy regulation, regulatory authorities, competition, and the free market," explains expert Justin Perryman, a professor at Washington University School of Law. "[States] such as Texas have a deregulated electricity marketplace. Missouri and 17 other states have a regulated energy market. In deregulated markets there are typically more energy providers which often leads to more competition and lower prices; however, other factors can contribute to energy prices.

"In regulated markets, the state energy regulatory authority sets the prices of energy," he continues. "It can be politically unpopular to raise energy costs, so those states may benefit from lower energy costs. Factors such as the state’s commitment to renewable energy may also factor into energy costs. Proximity to less expensive energy sources can lower energy costs.”

Texas's evolving energy landscape has been well documented, and earlier this year the state's solar energy generation surpassed the output by coal, according to a report from the Institute For Energy Economics and Financial Analysis.

A separate report found that, when compared to other states, Texas will account for the biggest share of new utility-scale solar capacity and new battery storage capacity in 2024. According to the U.S. Energy Information Administration, the state will make up 35 percent of new utility-scale solar capacity in the U.S. this year.

In addition to its No. 22 overall ranking, Texas took first place in the "Vulnerability to Climate Change" category.

Texas named most vulnerable state to climate change in new report

lone star disappointment

The Lone Star State performed most averagely in a new report that ranked all 50 states on environmental protection.

Texas ranked No. 22 on the report from SmileHub, a nonprofit tech platform using data to evaluate charities. The report analyzed 23 metrics — from energy efficiency score and industrial toxins per square mile of land area to climate change vulnerability — factoring in data from U.S. Census Bureau, Internal Revenue Service, Department of Agriculture, and more.

"The U.S. produces over 292 million tons of waste per year, or over 4.9 pounds per person per day, according to the latest data from the Environmental Protection Agency," reads the report. "Additionally, due to pollution, California, Oregon, Michigan, Indiana and South Carolina each have over 12,000 miles of river unsuitable for human contact. Pollution and waste are issues across the U.S., but some states work harder than others to limit their impact."

In addition to its middle-of-the-pack No. 22 overall ranking, Texas took first place in the "Vulnerability to Climate Change" category. Here's how else the state measured up:

  • No. 18 – Environmental Protection Charities per Capita
  • No. 36 – Share of State Land Designated for Parks and Wildlife
  • No. 28 – Energy Efficiency Score
  • No. 28 – Share of Population Using Green Transportation
  • No. 33 – Total Tonnage of Landfill Waste per Capita
  • No. 28 – Industrial Toxins per Square Mile of Land Area

It's not the first time the state performed poorly on recent environmental reports. In April, WalletHub evaluated the current health of states' environment and residents’ environmental-friendliness. Texas ranked No. 38, meaning it was the thirteenth least green state, only scoring 50.40 points out of 100.

Additionally, Houston has stood out for the wrong reasons. In May, Houston was ranked as the No. 15 most polluted city in the U.S. according to data compiled by the National Public Utilities Council. No other Texas city appears in the ranking. Three California cities — Bakersfield, Visalia, and Fresno — took the top three spots.

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Houston startup strikes deal to develop hydrogen production plant in Canada

hydrogen partnership

Houston-based cleantech startup Vema Hydrogen has reached a tentative agreement with Canada-based CHARBONE Corp. to develop a hydrogen production and processing plant in Québec.

The deal would couple Vema’s production of engineered mineral hydrogen with CHARBONE’s purification, compression and distribution capabilities.

Engineered mineral hydrogen, also known as orange hydrogen, is produced underground by accelerating naturally occurring geochemical reactions in iron-rich rock formations, according to the journal Energy & Environmental Science.

“Across high-value markets — from aviation and maritime fuels to industrial gases — there is incredible demand for Vema’s low-carbon [hydrogen]. Now, more than ever, we need a pathway to deliver these low-carbon fuels,” Pierre Levin, CEO of Vema, said in a news release.

The project would enable Vema to expand into emerging markets like low-carbon maritime and aviation fuel, e-fuels and power generation. Incorporating CHARBONE’s capabilities, the agreement would also support Québec’s hydrogen supply chain.

“The market is demanding high-value industrial gases, and our customers need cleaner, more reliable supply. By pairing Vema’s [hydrogen] feedstock with our purification and distribution capabilities, we’re strengthening Québec’s position as a regional hub for next-generation hydrogen,” Dave Gagnon, CEO of CHARBONE, added in the release.

Vema said in February that it had completed drilling of its first two pilot wells in Québec, making them the world’s first pilot well for orange hydrogen. It’s the first time Vema’s technology has been used outside a lab.

“This pilot will provide the critical data needed to validate [our hydrogen] at commercial scale and demonstrate that Quebec can lead the world in this emerging clean energy category,” Levin said. “The quality of the rock within our core samples is exactly what we expected and is very promising for hydrogen yields.”

Shortly before Vema carried out the pilot drilling, it signed a 10-year deal with California-based energy technology company Verne Power to supply clean hydrogen for California data centers. Over the course of the 10-year agreement, Vema will boost annual production of orange hydrogen to more than 36,000 metric tons.

“There is a robust market for baseload power generation across the U.S., where data centers are straining the grid,” Levin said. “As we power California’s fastest-growing markets with clean hydrogen, we look toward expanding our hydrogen to markets globally and supporting AI-driven power hubs.”

Vema, founded two years ago, raised $13 million in seed funding in 2025.

“The energy transition and emerging uses of hydrogen have spurred demand for clean hydrogen,” Levin said in its funding announcement. “However, existing decarbonized hydrogen production methods simply don’t work — they are too costly and energy-intensive. Vema is here to change that. It’s time to unlock a new era of scalable, low-carbon hydrogen.”

5 must-read Houston energy headlines: Veriten venture fund, ERock IPO + more

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Editor's note: The month of May brought big news for the Houston energy sector, including a flagship energy venture fund and IPO updates. Here are the five most-read EnergyCapital stories published May 14-29, 2026:

1. Houston investment firm closes $105M energy venture fund

Houston-based investment firm Veriten has announced the initial close of its second flagship energy venture fund with more than $105 million in capital commitments. Fund II will build on Veriten’s initial fund and aim to support “scalable technology solutions for energy, power and industrial applications.” Veriten is supported by over 50 strategic partnerships in the energy, power, industrial and technology sectors, including major players like Halliburton and Phillips 66.

2. Buoyed by $1.3B sales backlog, microgrid company ERock files for IPO

Another energy company in Houston is going public amid a flurry of energy IPOs. Houston-based ERock Inc., which specializes in utility-grade onsite microgrid systems for data centers and other customers, has filed paperwork with the U.S. Securities and Exchange Commission (SEC) to sell its shares on the New York Stock Exchange. The ERock filing follows the recent $1.9 billion IPO of Houston-based Fervo Energy, a provider of geothermal power that’s now valued at $7.7 billion.

3. Houston renewables developer signs agreement with Meta for new solar project

Houston-based EDP Renewables North America has signed a long-term power purchase agreement with Meta, the parent company of Facebook and Instagram, for its forthcoming Cypress Knee Solar project. The 250‑megawatt solar project will be built in Arkansas and is expected to come online by 2028. The company says the project will generate approximately $25 million in new revenue for Chicot County once operational.

4. Houston energy expert asks: Who pays when AI outruns the power grid?

For most of the past 20 years, U.S. electricity policy relied on predictable trends in demand. Electricity use, in most regions, increased gradually, forecasts were stable, and utilities adjusted the system in small steps. Power plants, transmission lines, and substations were generally added to reflect shifts in load, rather than growth, and costs were recovered through modest adjustments to customer bills. Growth in AI data centers has disrupted this model. A single facility can add as much electricity demand as a small town. That demand comes all at once, runs continuously, and has little tolerance for outages. If electricity service drops even briefly, computation stops, and services shut down. Ironically, data centers need reliable service, a point that their emergence is driving concern around for the rest of the grid.

5. Report shows geoscientists earn largest salary premium in Texas

A move to Texas bolsters earnings for some, and a new SmartAsset study has revealed the top professions where the median annual earnings in the Lone Star State exceed the national median. According to the report's findings, geoscientists have the biggest "Texas premium" and make a $159,903 median annual salary. Texas' salary for geoscientists is 61 percent higher than the national median for the same position (after adjusting for regional price parity).

Greentown names 5 climatech startups to manufacturing accelerator

Catalyst Cohort

Greentown Labs has named five climatech startups to its Go Make 2026 cohort, including one from Houston.

Greentown Go Make 2026 is in partnership with Shell Catalysts & Technologies and Technip Energies. Startups will be able to collaborate with leadership from Shell and Technip and have opportunities to work directly with their process engineering teams and develop potential partnerships, pilots and demonstrations, according to Greentown.

This year's manufacturing cohort focuses specifically on process technology and catalytic innovations, which, according to Greentown, have the potential to be a "critical enabler of the global energy transition." Greentown shares that 90 percent of chemical processes depend on catalysis, but traditional methods rely on fossil fuels and consume significant amounts of energy.

“Catalysis underpins the majority of industrial chemical processes, which together account for a significant share of global emissions, making it a critical lever for reducing carbon intensity while improving performance,” Georgina Campbell Flatter, CEO of Greentown, said in a news release. “Greentown Go Make 2026 is designed to close the gap between breakthrough innovation and industrial deployment. By connecting startups with Shell and Technip Energies’ technical expertise and global scale, we’re helping accelerate solutions that improve efficiency and drive industrial decarbonization.”

The five Greentown Go Make 2026 companies include:

  • Houston-based Biosimo, which makes scalable biochemicals from ethanol
  • Missouri-based Catalyxx, which transforms bioethanol into drop-in, cost-competitive, carbon-negative chemicals
  • Sydney, Australia-based HydGene Renewables, which produces low-carbon hydrogen and industrial chemicals from waste biomass
  • Switzerland-based TreaTech, which turns waste into renewable gas, water and minerals through catalytic hydrothermal gasification
  • California-based Unifuel, which has developed a chemical technology platform to make sustainable aviation fuel, renewable gasoline and other renewable chemicals

The cohort will be celebrated at a kickoff event in Houston at The Ion on June 9.

In addition to Greentown Go Make, Greentown also runs its Go Move (transportation), Go Energize (energy and electricity), Go Build (buildings), and Go Grow (food and agriculture) cohort-based programs. The climatech incubator announced its Go Build 2026 cohort in March. Read more here.

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