With its blend of biotechnology, conservation, and education, RioRaiz seeks to inspire a new generation of conservationists. Photo via RioRaiz/Instagram

For centuries, humans have been negatively impacting the natural world around them. A Houston organization is looking to leave an impact on the environment — but this time for the better.

Based in Houston, RioRaiz is a 501c3 nonprofit organization charting a unique course in the world of conservation and education. Founded in March of 2021, RioRaiz – meaning "root of the river" in Spanish, a nod to its deep-rooted connection with South American culture – seeks to preserve biodiversity through biotechnology and offer transformative learning experiences to contribute to a healthier planet.

Led by Jeff Carlson, the president and CEO, RioRaiz's mission is driven by three core pillars: conservation, scientific discovery, and education.

Currently, the nonprofit's efforts are focused on regions on the edge of ecological disruption, specifically the East Texas area and the Tropical Andes. In Texas, the organization aims to expand the biome of the Big Thicket National Preserve in Kountze as well as engaging locals by hosting clean-up drives. In the Andes, RioRaiz aspires to establish biological corridors between national parks and natural reserves, diminishing potential disruptions to animal migration patterns.

The timeline for these critical initiatives, Carlson said, hinges on donations.

"We have a list of priorities that is cataloged from input from our scientific collaborators, as well as our ability to deliver on our promises to our donors and supporters,” Carlson said.

Partnerships form a critical role in RioRaiz's work, notably those with academic institutions in the United States and Colombia. One of these collaborations saw Carlson spend three months in Colombia, working with the local Páez tribe, also known as the Nasa, to explore the potential of their traditional medicines for modern treatments.

"We're really excited to learn and to share our techniques and our knowledge," Carlson said, underlining the organization's commitment to partnering with traditional and indigenous knowledge sources.

With its blend of biotechnology, conservation, and education, RioRaiz seeks to inspire a new generation of conservationists. By offering an intimate virtual glimpse into the world's biomes, the nonprofit aims to instill a deep-rooted respect for nature and encourage sustainable action.

"If you expose students to these different kinds of environments at an early age, that might inspire somebody to go into conservation," Carlson said.

With a progressive effort, RioRaiz is harnessing the power of virtual reality to redefine education. The organization uses specialized filming equipment during its expeditions, capturing moments like the discovery of new species or conducting bio surveys. RioRaiz's visually compelling stories will surpass language barriers, transporting students virtually to different biomes. In time, Carlson hopes to distribute pre-loaded systems to communities with limited internet access, taking the classroom to every corner of the world. These virtual reality experiences are expected to launch within the next year.

"We want to bring the rainforest into the classroom," Carlson said.

Through its work, RioRaiz aims to demonstrate that the route to a sustainable future lies not just in face-to-face interactions, but in a global, interconnected approach to education and conservation. Its vision is clear — to grow far beyond traditional reaches, preserving biodiversity and fostering a healthier world.

Memorial Park, which is currently undergoing a master plan renovation, and other Houston parks can be a great opportunity for introducing urban conservation inside the city limits. Rendering courtesy of Nelson Byrd Woltz

Houston conservationist is helping to find new ways to protect local species and ecosystems

Living on a prairie

The Houston toad is a species that was discovered in Harris County in the 1950s. It has a very distinct, loud call that reverberates at quite a high pitch. But the Houston toad's call hasn't been heard in the city of Houston for almost 50 years. The species is locally extinct and critically endangered elsewhere. In fact, it's the most endangered amphibian in North America, says Cassidy Brown Johnson, a Rice University lecturer and president of the Coastal Prairie Partnership.

"When we think about extinction, we think of the dodo bird or the woolly mammoth," Johnson says. "But extinction is happening right underneath our noses."

The Houston Zoo has a breeding facility for Houston toad, but other than that, it's extremely unlikely that the Houston toad will ever reside naturally in its namesake city.

"We have modified the environment so heavily, that it'd be a bit of a dicey thing to do [to reintroduce the species] because there are so few of them, it's better to focus on an environment where it's still OK for them," Johnson says. The largest population of the Houston toad is actually in Bastrop, however due to the Bastrop fires in 2011, the species is only just recently back to a good place even there.

Johnson is giving a free lecture in April at Rice regarding extinction, where she'll bring her Astros-named Houston toads, Springer and Julia Morales, as her teacher aids.

Changing tides in conservation
As cities like Houston continue to be developed, scientists and researchers are challenged with finding new ways to effect conservation. Johnson says within the industry, there's been a shift in thinking when it comes to preserving nature.

"There's a new burgeoning movement in conservation called urban conservation," she says. "For a long time, if you talked to the traditional conservationists, the idea of conservation is to protect big spaces — the national and state park systems are the perfect example."

But large parks are expensive and a huge undertaking. It's still the strongest form of conservation, but introducing conservation efforts in a city — perhaps in some of Houston's parks, like Memorial Park or Hermann Park — helps not only the species of animals involved, but also educates the local population and forms a connection with residents.

"That has a twofold kind of benefit," Johnson says. "It protects the greenspace so species to live with us, and then also it makes the connection to this place we try to protect."

Of course, this type of effort is new, and there's not a lot of data to show how this would affect the ecosystem and its species, from the migratory and genetic diversity standpoints. Despite the lack of data, Johnson says this type of effort needs to happen.

"We're going to continue to manipulate the world, and maybe if we started thinking about this now, that we can get to a point were we understand enough were we can make these some sort of functioning ecosystem," she says.

Part of the shift in thinking about these ecosystems has to do with new ways of tracking species and understanding their environments.

"Technology is helping us ask a lot of these questions," Johnson says. "Ecology is surprisingly complicated. There's so many variables. ... I think technology and our advance with computing is definitely going to help us understand it."

Using preservation to solve flooding
The educational component is also very important to conservation, and Johnson is making strides on campus with her class. Last year, her department and her class introduced a pocket prairie right on the Rice campus.

Before it was the fourth largest city in America, Houston was a prairie. That type of ecosystem — thick with prairie grass — is very absorbing when it comes to rain water.

"It's really surprising to people that the trees and all this lushness is actually all artificial," Johnson says. "We know that this ecosystem evolved with the cyclical flooding events that happened here."

This movement to bring back Houston's ancient ecosystem is a new focus on a few prairie conservationist groups — and even the Harris County Flood Control. This has been going on for a while, but recent flooding events have opened the eyes of people now looking for reliable solutions to flooding problems.

"After Hurricane Harvey, people started realizing that this might be one of the solutions we could actually investigate and see if it can help us," Johnson says. "A green space is going to absorb way more water than a parking lot."

Of course, there are other flood solutions being discussed — some even incorporating tech or even a tube system underground.

"Historically, there has been some budding of heads between the environment and technology, but I really think moving forward, those two fields have to work together. We need to use technology to save the environment," Johnson says. "I think Houston is one of the places where that conversation is starting to happen."

Missing the toads

Courtesy of Cassidy Brown Johnson

The Houston toad has been locally extinct since the 1970s.

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.