The Bridge
Researchers Find that to Achieve Long-term Sustainability, Urban Systems Must Tackle Social Justice and Equity
Inclusivity and understanding past policies and their effects on underserved and marginalized communities must be part of urban planning, design, and public policy efforts for cities.
Joe F. Bozeman III, the lead author and an assistant professor in Georgia Tech’s School of Civil and Environmental Engineering. He is also the director of Tech’s Social Equity & Environmental Engineering Lab.
« Researchers Find that to Achieve Long-term Sustainability, Urban Systems Must Tackle Social Justice and Equity
Newswise — Inclusivity and understanding past policies and their effects on underserved and marginalized communities must be part of urban planning, design, and public policy efforts for cities.
An international coalition of researchers — led by Georgia Tech — have determined that advancements and innovations in urban research and design must incorporate serious analysis and collaborations with scientists, public policy experts, local leaders, and citizens. To address environmental issues and infrastructure challenges cities face, the coalition identified three core focus areas with research priorities for long-term urban sustainability and viability. Those focus areas should be components of any urban planning, design, and sustainability initiative.
The researchers found that the core focus areas included social justice and equity, circularity, and a concept called “digital twins.” The team — which consists of 13 co-authors and scholars based in the U.S., Asia, and Europe — also provided guidance and future research directions for how to address these focus areas. They detailed their findings in the Journal of Industrial Ecology, published in January 2023.
“Climate change has certainly increased the amount and intensity of extreme weather events and because of that, it makes our decision making today critical to the manner in which our economy and our day to day lives can operate,” said Joe F. Bozeman III, the lead author and an assistant professor in Georgia Tech’s School of Civil and Environmental Engineering. He is also the director of Tech’s Social Equity & Environmental Engineering Lab. “Our quality of life can be negatively affected if we don’t make good decisions today.”
Three core areas of focus to achieve urban sustainability
The researchers’ first core focus area, justice and equity, addresses innovations and trends that disproportionately benefit middle and high-income communities. Trends like IoT, “smart cities,” and the urban “green movement” are part of a broader push by cities to become more sustainable and resilient. But communities of color and low-income neighborhoods — the same areas often home to environmental contaminations, infrastructure challenges, and other hazards — have often been overlooked.
The researchers’ findings showed a consistent trend with marginalized communities across several countries, including Canada, the Netherlands, India, and South Africa. They call for mandatory equity analyses which incorporate the experiences and perspectives of these marginalized communities, and, more importantly, ensure members of those communities are actively engaged in decision-making processes.
“Planning, professional, and community stakeholders,” the researchers write in the paper, “should recognize that working together gets cities closer to harmonizing the technological and social dimensions of sustainability.”
The second focus area, circularity, addresses resource consumption of staple commodities including food, water, and energy; the waste and emissions they generate; and the opportunities to increase conservation of those resources by boosting efficiencies.
“What we mean by circularity is basic reuse, remanufacturing, and recycling efforts across the entire urban system — which not only includes cities and under resourced areas within those cities — but also rural communities that supply and take resources from those city hubs,” Bozeman said. The idea is aligned with the circular economy concept which addresses the need to move away from the resource-wasteful and unsustainable cycle of taking, making, and throwing away.
Instead, the researchers argue, cities should look for ways to improve efficiency and maximize local resource use. That has potential benefits not only for urban areas, but rural communities, too. One example, Bozeman said, is the Lifecycle Building Center in Atlanta. It takes old building supplies and sells them locally for reuse.
“By doing that, they’re at the beginning stages of creating an economic system, a regional engine where we share resources between cities and rural areas,” he said. “We can start creating an economic framework, not only where both sides can make money and get what they need, but something that can actually turn into a sustainable economic engine without having to rely on another state or another country’s import or export economic pressures.”
To strengthen circularity and make it more robust, the researchers call for more expansive metrics beyond measuring recycling rates and zero waste efforts, to include other parts of the supply chain that may yield new ideas and solutions.
The third focus area, digital twins, addresses the development of automated technologies in smart buildings and infrastructure, such as traffic lights to respond to weather and other environmental factors.
“Let’s say there’s a heavy rain event and that the rainwater is being stored into retainment,” said Bozeman. “An automated system can open another valve where we can store that water into a secondary support system, so there’s less flooding, and that can happen automatically, if we utilize the concept of digital twins.”
Creating a new urban planning model
The research came about as part of the mission of the Sustainable Urban Systems Section of the International Society for Industrial Ecology, which aims to be a conduit for scientists, engineers, policymakers, and others who want to marry environmental concerns and economic activity. Bozeman is a board member of the Sustainable Urban Systems Section.
“In that role, part of we do is set a vision and foundation for how other researchers should operate within the city and urban system space,” he said.
For urban sustainability, engineers and policy makers must come to the table and make collective decisions around social justice and equity, circularity, and the digital twins concepts.
“I think we’re at a really critical decision point when it comes to engineers and others being able to do work that is forward looking and human sensitive,” said Bozeman. “Good decision making involves addressing social justice and equity and understanding its root causes, which will enable cities to create solutions that integrate cultural dynamics.”
CITATION: Joe F. Bozeman III, Shauhrat S. Chopra, Philip James, Sajjad Muhammad, Hua Cai, Kangkang Tong, Maya Carrasquillo, Harold Rickenbacker, Destenie Nock, Weslynne Ashton, Oliver Heidrich, Sybil Derrible, Melissa Bilec. “Three research priorities for just and sustainable urban systems: Now is the time to refocus.” (Journal of Industrial Ecology, January 2023)
About Georgia Institute of Technology
The Georgia Institute of Technology, or Georgia Tech, is a public research university developing leaders who advance technology and improve the human condition. The Institute offers business, computing, design, engineering, liberal arts, and sciences degrees. Its nearly 44,000 students representing 50 states and 149 countries, study at the main campus in Atlanta, at campuses in France and China, and through distance and online learning. As a leading technological university, Georgia Tech is an engine of economic development for Georgia, the Southeast, and the nation, conducting more than $1 billion in research annually for government, industry, and society.
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The Knowledge
Metrolink Offers Fare-Free Rides for Earth Day 2026 Across Southern California
Metrolink offers fare-free rides for Earth Day 2026 across Southern California, encouraging sustainable travel and reduced emissions.
Last Updated on April 21, 2026 by Daily News Staff
Metrolink Offers Fare-Free Rides for Earth Day 2026
LOS ANGELES — April 22, 2026 — In a continued push toward sustainable transportation, Metrolink will once again offer systemwide free rides on Earth Day, inviting commuters and travelers to leave their cars behind and explore a cleaner way to move across the region.
A One-Day Opportunity to Ride Free
On Wednesday, April 22, passengers can board any Metrolink train — including the Arrow service — without purchasing a ticket. The initiative is part of the broader celebration of Earth Day, encouraging environmentally conscious travel choices.
The fare-free program is designed to appeal to both regular riders and first-time users, particularly those navigating Southern California’s persistent traffic congestion and rising fuel costs.
Encouraging Sustainable Travel Habits
“Earth Day is a reminder that small changes, like choosing public transit over driving one day a week, can have a meaningful impact on our environment,” said Doug Chaffee, chair of the Metrolink Board.
With gas prices continuing to strain household budgets, the agency hopes the initiative will inspire more residents to consider rail as part of their regular commute.
Regional Connections Expand Access
Metrolink’s Earth Day promotion aligns with similar efforts by other Southern California transit providers. Riders can seamlessly connect to services operated by: LA Metro and the Orange County Transportation Authority, Riverside County Transportation Commission, San Bernardino County Transportation Authority and Ventura County Transportation Commission.
These partnerships extend the reach of fare-free travel across a six-county region, making it easier for riders to explore destinations without relying on personal vehicles.
Service Adjustments and Rider Tips
Passengers should note that trains will operate on a reduced weekday schedule, implemented earlier this spring. Despite the adjustment, all Metrolink lines and station cities remain in service.
For those planning a trip:
- No ticket is required — simply board the train
- Bikes are welcome, with capacity ranging from three bikes per standard car to nine in designated bike cars
- A curated destination guide highlights attractions within walking or biking distance of stations
Environmental and Economic Impact
Metrolink is also promoting its Personal Impact Calculator, a digital tool that allows riders to estimate how switching from driving to rail can reduce greenhouse gas emissions and lower fuel expenses.
A Broader Trend in Public Transit
Fare-free transit days have gained traction nationwide as agencies look to boost ridership and promote sustainability. Southern California’s expansive commuter rail network makes it particularly well-suited for such initiatives, offering a viable alternative to one of the country’s most car-dependent regions.
Bottom Line
Metrolink’s Earth Day promotion is more than a one-day free ride — it’s a strategic effort to shift commuter behavior, reduce environmental impact, and showcase the convenience of regional rail. For Southern Californians, April 22 presents a low-risk opportunity to rethink how they travel.
Source: Metrolink
https://metrolinktrains.com/news/metrolink-goes-fare-free-for-earth-day-on-april-22
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New hybrid event aims to give grieving audiences meaningful holiday viewing, with films from more than 25 countries and a mission centered on love, loss, and emotional truth.
A new film festival debuting in late 2026 is taking a different approach to holiday entertainment. Grief Fest™: The Grief Film Festival, created by My Grief Angels Inc., is being introduced as what organizers believe is the world’s first film festival dedicated entirely to grief, remembrance, resilience, and healing.
The hybrid festival will run in two segments: November 25–29, 2026, during Thanksgiving week, and December 24, 2026, through January 3, 2027, during Christmas and New Year’s. Top Honors films will be announced on December 31, 2026.
Organizers say the timing is intentional. Research cited in the announcement shows that grief and loneliness are major holiday stressors for many Americans, making the season especially difficult for people coping with loss. In that context, Grief Fest™ is positioning itself as an alternative to the flood of traditional feel-good holiday programming.
The festival is open to short films, features, documentaries, experimental work, AI-generated projects, and VR experiences. It is described as inclusive, non-religious, and LGBTQ+ friendly, with submissions already received from more than 25 countries. All films will be presented in English, either spoken or subtitled.
Grief Fest™ will be available both in person and virtually through Film Festival Plus, making it accessible to audiences worldwide. The launch of GriefFest.com also includes Lumen, a multilingual AI guide designed to help filmmakers and attendees navigate the festival in their preferred language.
Rather than focusing on industry prestige, organizers say the festival is centered on community and emotionally honest storytelling. For audiences who feel unseen during the holidays, Grief Fest™ is aiming to offer something rare on the seasonal screen: recognition.
Source: PR Newswire
Related Reading
- Grief Fest: Official festival site
- My Grief Angels Inc.: About the nonprofit behind the festival
- Film Festival Plus: Virtual access platform
Catch the latest in movies, TV, music, pop culture, and live events in STM Daily News’ Entertainment section.
Space and Tech
Astronaut Victor Glover is the latest in a long line of Black American explorers − including York, the enslaved man who played a key role in the Lewis and Clark expedition
Last Updated on April 10, 2026 by Daily News Staff
Craig Fehrman, Indiana University
Astronaut Victor Glover
In April 2026, four astronauts are scheduled to fly around the Moon. As part of NASA’s Artemis II mission, they will become the first humans to do so in half a century. One crew member, pilot Victor Glover, will become the first Black astronaut to ever orbit the Moon.
Glover’s achievement is worth celebrating. But it’s also worth remembering that he belongs to a long and underappreciated history. America’s first Black explorer didn’t fly an Apollo rocket or sail with the U.S. Exploring Expedition. He traveled with Lewis and Clark, and he was known by a single name: York.
I’m a historian who spent five years writing a book about Lewis and Clark, and I found new documents that show York was one of the most important people on their expedition. Even in a party that could number as many as 45 men, York stood out – for his courage, his skill and his sacrifices that helped the famous captains reach the Pacific Ocean.
York’s life as a slave
York was born in Virginia around 1770. Growing up, he was a creative and sociable child, unusually tall with dark hair and a dark complexion – “black as a bear,” a contemporary noted.
He was also enslaved by the Clarks. William Clark, who was around the same age, was also unusually tall, though his hair was a rusty red, and sometimes the boys played together. But the playing stopped once York turned 9 or 10. That’s when he joined the adult slaves in working full time. That’s also when he began to note the differences between his life and William’s – differences that became only clearer once William started ordering him around.
In the 1780s, the Clark household headed to Kentucky. York met a Black woman there and married her. He also became William’s “body servant.”
A body servant was a slave who stayed close to his owner and prioritized his comfort, laying out his clothes and serving his meals. When Meriwether Lewis asked Clark to join his expedition, in 1803, Clark ordered York to accompany him.
Perhaps York was excited for this adventure. Perhaps he was not – it would be punishing, and he would be separated from his wife.
Either way, York didn’t have a choice.
The Corps of Discovery
York proved his worth from the start. Once they reached St. Louis, the soldiers, later known as the Corps of Discovery, rushed to raise winter quarters. Working in hail and snow, York and the others built log huts. They needed rough planks for their tables and bunks, but the carpenters had only a single whipsaw to make them. They chose two men to operate this crucial tool. One of them was York.
On May 14, 1804, the corps began ascending the Missouri River. York helped row and tow the party’s barge, which was the size of a semi-truck trailer. He carried a rifle and hunted – according to the expedition’s journals, he was only the fifth named member to bring down a buffalo. York cooked for the captains. He collected scientific specimens. He nursed the sick, including several soldiers and, later on, Sacagawea, a Shoshone woman who would also prove essential to the expedition’s success.
The soldiers were not always kind in return. During this period, officers rarely brought along enslaved body servants. York’s race probably made some of the men angry or uncomfortable. One day, someone threw so much sand in his face that it nearly blinded him. Clark claimed it was “in fun,” but he also wrote that York was “very near losing his eyes,” and no one else got cruelly sprayed with sand.
That fall, during councils with Native leaders, York played a surprising and vital role. The Arikara, Mandan and Hidatsa all crowded in to see him and to touch his skin. They had never met a Black person before, and York showed off his strength and played with the Native children. Later, the Arikara said York was “the most marvelous” thing about the corps.
The next year, the expedition crossed the Rockies and the Continental Divide. York’s most important – and most overlooked – contributions came soon after. On the Columbia River and its tributaries, the party had to dig out five new canoes and then paddle them through treacherous rapids.
Lewis and Clark allowed only their best rivermen on these foaming, rock-riven waters. One of them was almost certainly York. During my research, I found an unpublished letter in which Clark praised York’s ability to “manage the boats.”
Just as important, York was a strong swimmer, a rare thing in an era when many people never learned to swim.
York’s life as an explorer
On the Columbia River, the corps survived a series of terrifying choke points – soggy hazards they referred to as the “Long Narrows” and the “Great Chute.” After that came the ocean. They had traveled together for more than 4,000 miles (6,400 kilometers), and when the captains asked the men to vote on where to put their final winter quarters, they made sure to ask York, too.
It was the latest sign that his role had changed during this epic journey. But those changes began with York. In the West, he found ways to make choices and assert himself. He sent a buffalo robe to his wife in Kentucky. When Clark told him to scale back his performances for Native people, York ignored him – because he wanted to, and because he could.
York’s vote was also evidence that, like Victor Glover today, he was an official American explorer, a key member of a sprawling, federally funded mission. From 1804 to 1806, the government devoted a larger percentage of its budget to the corps than it devotes to NASA today.
Part of that money was earmarked for York. The Army gave officers who brought along their slaves a monthly ration or its cash equivalent. When the corps made it home, the government paid US$274.57 for York’s labor, a sum similar to what the privates received. But that money didn’t go to York. It went to Clark.
The hidden history of Black explorers
There have been many Black explorers in American history. Thomas Jefferson launched other expeditions besides Lewis and Clark’s, and those expeditions also included enslaved people, though their names have not survived. Isaiah Brown served on the Wheeler Survey, which mapped the West in greater detail after the Civil War. Matthew Henson accompanied Robert Peary on his Arctic expeditions, which received some federal support. More recently, NASA has depended on Black astronauts such as Guy Bluford, Mae Jemison and Jeanette Epps, among others.
York and Victor Glover are, for now, the first and most recent examples of this inspiring tradition. But their contributions go beyond that. When the captains asked York to vote on the winter quarters, they were acknowledging in some small way that he’d proven he was more than a body servant.
Of course, York had always been more than that. It just took 4,000 miles for Lewis and Clark to see it.
Craig Fehrman, Adjunct instructor at the Media School, Indiana University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Each episode of The Knowledge runs 30–90 seconds, designed for curious minds on the go—perfect for YouTube Shorts, TikTok, Reels, and quick reads.
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