A dataset unveiled today more than doubles the documented stream miles in the Chesapeake Bay Watershed, elevating the total from approximately 100,000 to over 200,000 miles. The Hyper-Resolution Hydrography Data used to generate the new stream maps stems from a collaboration between the University of Maryland, Baltimore County (UMBC), the Environmental Protection Agency’s Chesapeake Bay Program (CBP), and the Chesapeake Conservancy (CC), including UMBC alumni at CBP and CC. 

The project lays a robust foundation for sustainable management of one of North America’s most critical ecosystems, which spans six states and supports millions of residents and iconic wildlife, such as blue crabs and migrating shorebirds. The new, high-resolution dataset offers the clearest picture yet of how water moves through both pristine landscapes and altered terrain throughout the watershed. 

The novel, AI-supported mapping method the research team used also dramatically reduces costs, time, and labor required for stream mapping, making it easy to update as additional data become available or apply in other watersheds to amplify its impact. 

“The landscape is shaped by running water. Stream networks are the primary conduit between the watershed and the Bay, and now we can characterize that connection in ways that we’ve never been able to before,” says Matthew Baker, UMBC professor of geography and environmental systems, and a lead on the mapping project. In addition to locating streams and tracing their flow paths with a high degree of precision, the mapping process also allowed the team to report estimates of each channel’s width and depth along its entire length. 

A resource for restoration

“When you spend a lot of time looking at hillshade relief maps, you begin to recognize the extent of human manipulation of terrain and how dramatically we have shaped how water flows across the landscape,” Baker adds. The new data will allow individuals and organizations to improve efforts to mitigate any harms from human disruption. 

Environmental groups and government agencies, including the CC and CBP, can use the data to prioritize restoration projects, like targeted streamside tree plantings that can mitigate excessive erosion—detected as unusually steep banks or deep channels relative to a stream’s width—and filter pollutants to improve water quality. Farmers and urban planners are likely to find it useful as well, to decrease the detrimental effects of agricultural runoff or wisely manage development to avoid flooding and minimize detrimental effects on wildlife habitat, for example.  

“These maps represent over six years of hard work, and I can’t wait to see what people do with this highly anticipated dataset,” says David Saavedra ’14, environmental science. Saavedra’s role as a senior geospatial technical lead at the Chesapeake Conservancy had him intimately involved with the project from brainstorming to implementation. 

The project has been personally rewarding for Saavedra, too. “To work alongside Dr. Matt Baker all these years has been a wonderful opportunity,” he says. “I continue to learn from him every day and am proud to consider him a colleague and mentor.”

What to leave in, what to leave out?

This project is the first to harness high-resolution LiDAR data and artificial intelligence for large-scale, automated stream mapping. LiDAR, a laser-based system deployed via aircraft, captured elevation data with centimeter-level accuracy, generating a three-dimensional portrait of the terrain. AI algorithms, leveraging resources at UMBC’s High-Performance Computing Facility (HPCF), then processed the data, employing computer-vision techniques to identify channels. 

The HPCF computers mapped the entire watershed in a mere two weeks—a feat that traditional methods might take years to accomplish. The results achieved 94 percent accuracy for streams represented in existing data, and between 67 and 82 percent accuracy for previously unmapped streams, as validated by Saavedra against two other datasets, aerial imagery and LiDAR-derived topographic maps.

“I led a painstaking process of manually evaluating over 7,000 stream reaches across the watershed to conduct a thorough accuracy assessment on this novel dataset,” Saavedra says. Now that the methodology has been demonstrated effective, that level of manual validation shouldn’t be necessary if the technique is applied elsewhere.  

The algorithm needed some tweaks along the way, however. Initially, it included channel-shaped features that made less sense to include on a stream map, like detention ponds, green swales, gutters, and crop furrows. That necessitated modifications to the algorithm to remove those features.  

“Part of the challenge in interpreting the terrain was to make distinctions between those features and more natural channels,” Baker says. “So in our model, we had to eliminate some features that were mapped initially. That was unexpected.”

Eye-opening opportunities

The resulting maps offer a tenfold boost in resolution, moving from a 1:24,000 map scale to a 1:2,400 map scale with each pixel representing one square meter. The new stream maps align with recently-developed land cover maps produced at the same resolution, which are being released at the same time. 

“I think when people begin using our hyper-resolution hydrography in conjunction with the one-meter land use data, it will be eye-opening to see just how connected the landscape is to our waterways,” Saavedra says. “There are so many opportunities to improve our region’s water quality, many of which may not have been readily apparent with previous data.” 

Labeeb Ahmed ’15, environmental science, has been involved in managing the data release through his role as a geographer in the Chesapeake Bay Program at the EPA. 

“The lack of consistent high-resolution hydrography data has always been a challenge, as it is critical for numerous outcomes outlined in the Chesapeake Bay Watershed Agreement, such as mapping forest buffers, non-tidal wetlands, species habitats for brook trout and black duck, and defining stream health,” he says. “This data release will enable novel and interesting research and scientific inquiries. I’m excited to see how other researchers and stakeholders will use this data in their conservation and restoration efforts.”

Like most dads, Chris Burk immediately told his 10-year-old daughter that the object she was trying to fish out of Pig Pen Pond was probably trash. Emily was not to be deterred, and Burk said he “had egg on his face” when lo and behold, the piece of trash was actually a ring. A West Point class ring from 101 years ago. And wait, was that a name inscribed?

The Burks live a few miles from UMBC and occasionally use it as a place to take a family stroll. When they visited last summer, Burk noticed the water level was a little lower than usual in the body of water formally known as CERA Pond, which sits between the bwtech@UMBC Research and Technology Park and the loop across from Admin Garage. That’s when Emily got a stick to try to snag a shiny tab settled at the bottom of the shallow embankment.

The name on the ring—Santiago G. Guevara—led Burk, who is a land surveyor and well acquainted with historical research, on an internet crusade to 1) reunite the ring with the owner’s descendants and 2) figure out how in tarnation the ring got there in the first place. So far he’s only been able to check off the first item.

Enter Nick Guevara, a U.S. Navy veteran, dedicated family historian, avid blogger, and most importantly, Santiago Guevara’s grandson. Nick also has no clue how the family heirloom ended up in UMBC’s pond. (Although he does have a nephew, Quintin Simmons, who graduated in 2020 with a degree in geography and environmental systems. Simmons, who coincidentally has swum in Pig Pen Pond, didn’t know his great granddad went to West Point, much less had a class ring from 1923. In another twist of coincidence, Simmons works at a company housed in bwtech and can see the pond from his office.)

“I’m so flabbergasted that these things can still happen,” says Nick. “It makes the world feel small in a good way. We need more stories to bring people together.”

Do you have any clues about how Santiago Guevara’s West Point ring ended up in CERA Pond? What’s the best thing you’ve found on campus? Email us at magazine@umbc.edu.

Since fall 2021, UMBC’s Interdisciplinary Consortium for Applied Research in the Environment (ICARE) has supported master’s students pursuing environmental science research related to Baltimore and the surrounding area. Students in the program have studied everything from “forever chemical” contamination in local waterways to educational outreach using horseshoe crabs to stormwater management. Trainees have looked at urban bat populations, community members’ knowledge of zero-waste practices, and oyster aquaculture. Program alumni have accepted roles with the U.S. Forest Service, National Oceanic and Atmospheric Administration, The National Academies of Sciences, Baltimore Tree Trust, and more. 

To increase the relevance and benefit of students’ projects, members of community partner organizations co-advise students on their research. Co-advisors have come from organizations like Baltimore Green Space, Maryland’s Department of Natural Resources, and the South Baltimore Community Land Trust. ICARE began with a handful of faculty members from all three colleges at UMBC who wanted to collaborate more closely. Over time, it grew into an NSF-funded training program that today includes more than 100 people and 36 organizations.   

Earlier this month, the ICARE program celebrated its impact with “ICARE Day,” including a research poster session and luncheon with keynote address. 

“You’re combining the skills, knowledge, and perspectives you gained here in ICARE with your already strong commitment to environmental justice to make the world better for people and the ecosystems we live in,” said Tamra Mendelson, professor of biological sciences and ICARE program director, of program alumni, while members of the current cohort are “flexing those skills, nurturing your passions, and finding your way toward meaningful and consequential work in the environmental sector.”

Those opportunities are plentiful today, according to keynote speaker Fernando Miralles-Wilhelm, president of the University of Maryland Center for Environmental Science. 

“What’s happening now is that individuals realize that every single thing we do—every single economic activity we engage in, from the food you eat, to the clothing you wear, to how we power our cities—everything hinges on the environment and natural resources,” he said. “It’s not just about having a nice landscape—the environment impacts economic bottom lines.”

Current trainees, set to graduate in the next few months, are pursuing a diverse set of projects. For example, Isabella Molatore has been studying the presence of invasive fish species in Baltimore Harbor through a combination of angler interviews and DNA testing of harbor water samples. Donovin Smith is exploring novel methods to detect heavy metals in the air and using the data to measure how proximity to railways, incinerators, and other factors affects air pollution. And Will Kaselow has compared the roles and effects of different entities that influence environmental education, such as nonprofits, various levels of government, and local institutions like schools and community centers.    

Despite undeniable environmental challenges, Miralles-Wilhelm ended the event on a hopeful note. 

“If you look at the news, you get bombarded by so much negative stuff. You may end up believing that the world is becoming a worse place. However, I counter that by saying that since World War II, every single human development indicator and every single environmental and development indicator around the world has gotten better,” Miralles-Wilhelm said. “We’ve spent quite a bit of effort—scientists, policymakers, and investors—to try to make a better world, and it is working. It may not be working at the pace that you want it to work, it may not be improving everywhere at the same time, but it’s also undeniable that we have gotten better.”

ICARE trainees and alumni, armed with skills from technical laboratory techniques to community organizing, are now poised to contribute to and accelerate that positive trend.   

UMBC has received a $1.2 million solar energy grant from the Maryland Energy Administration (MEA) to support solar power installations on campus and other sustainability initiatives. 

The funding will enable construction of solar canopies over the north portion of the Stadium Lot. Rooftop solar arrays will be mounted on UMBC’s central receiving warehouse, located adjacent to the lot. The installations will be highly visible to the UMBC community and members of the public attending events at the Chesapeake Employers Insurance Arena. 

Together, these solar installations will generate 1,000 kWAC of clean, carbon-free energy, or about 2.5 percent of UMBC’s current annual electricity. The solar panels’ output will reduce UMBC’s carbon footprint by roughly 500 tons per year and earn Solar Renewable Energy Credits from the state of Maryland, which can be sold to power companies. The combined savings from the electricity generation and accompanying SRECs may save UMBC $200,000 to $300,000 annually.

“This solar energy project is a significant step forward for UMBC to reach its sustainability goals, and will benefit our campus and local communities,” Taylor Smith, assistant director in the Office of Sustainability, says. “For the first time, the university will generate a significant amount of clean, renewable electricity right here on campus.  We are lucky to have a community of partners that made this happen.”

Beyond solar

The grant will also support the development of UMBC’s Campus Clean Energy Master Plan (CCEMP). The CCEMP will rely on past studies and a forthcoming decarbonization engineering study to identify opportunities to save energy and decarbonize campus energy systems, including the central and satellite utility plants.

UMBC’s geography and environmental systems department and engineering faculty affiliated with the Grand Challenges Scholars Program are designing new learning opportunities that will use the solar project as an educational tool. Grant funds will partially fund academic experiences that provide students with hands-on learning opportunities in solar energy technology, renewable energy systems, and sustainability management, integrating real-world problem-solving into the academic curriculum. Five interns will also gain critical experience through supporting these projects, under the supervision of the Office of Sustainability and departmental faculty.

“The campus community can be proud of this commitment to bring solar energy to campus,” Smith says. “This project will not only accelerate UMBC’s shift to clean energy but will also create a visible, tangible symbol of the progress that’s been made. Plus, the new solar arrays will create learning opportunities for students to build the skills they need to thrive in the green economy.”

During a recent trip to Normandy, France, UMBC student Rebecca Smith hopped over to Lüneburg, a historic town in northern Germany, to visit Gertrud Krause-Traudes, her partner in UMBC’s Virtual Tandem Conversation project. After three semesters of virtual conversations in German and English, Smith was more than happy to go the extra kilometer (plus a few hundred more) to meet her in person. Krause-Traudes, a professional tour guide, was excited to show Smith Lüneburg’s historic sites. 

The Virtual Tandem Conversation project was created by Susanne Sutton, a teaching professor of German, and Talke Macfarland, a visiting lecturer of German in UMBC’s Department of Modern Languages, Linguistics, and Intercultural Communication. They established the program during COVID-19 to help UMBC students learning German and German students learning English socialize while continuing to improve their language skills.

“I asked the director of the International Center at Leuphana University Lüneburg to post a call for participants on their listserv,” says Sutton, who, while visiting her hometown, had met the director in nearby Lüneburg to discuss UMBC study abroad credit equivalencies. “That generated 35 applicants! It just grew from there,” Sutton says. Now, Sutton is managing partnerships and recruiting collaborators from two additional institutions: University of Kassel and BBS-1 Wirtschaftsgymnasium, a business vocational high school.

Smith, who is a professional harpist, enrolled in UMBC’s Golden ID Program at the beginning of the pandemic to continue taking classes with Macfarland, whom she first met at Anne Arundel Community College. “To my delight, faculty and students warmly welcomed me into their German classes,” says Smith, who was returning to take classes and rekindle her love of German after raising her family and pursuing her music career. “In 2023, I became involved with the tandem program, where my German counterpart, Gertrud, and I instantly developed a friendship through our mutual love of music and foreign languages.”

“How fortunate and privileged I feel to be part of this vibrant international community at UMBC, who seek not only to advance their students’ language abilities, but even more importantly, to build bridges between the two countries, one person at a time—diplomacy at its best!” says Smith.

Getting to know you

Macfarland and Sutton grew up in the state of Lower Saxony in northern Germany. Their joy for teaching their heritage language is a key reason the program has grown from one semester to a sequence of three semesters, each with increasing difficulty and 35 – 40 tandem participants per year. 

The tandem project is now a required component of the German course sequence to increase proficiency in reading, writing, speaking, and listening, emphasizing intercultural communication and global awareness. However, the actual tandem meetings are entirely student-driven and take place outside of the classroom—each tandem pair arranges virtual meetings according to their schedule. UMBC students keep a weekly diary, where they document their conversations. During the first three weeks, partners learn about each other, exploring their respective cities and universities.

“I provide questions that relate to what we currently do in class,” says Macfarland. “For instance, when we read about an exhibit by German visual artist Gerhart Richter, I asked partners to discuss art: Do you visit museums? What interests you? What’s nearby? Are you artistic? What art or work resonates with you and why?” The journal also allows instructors to monitor and give feedback on students’ weekly meetings. Some of these conversations have led to more personal exchanges, such as discussing video games they play or playing together, sharing the latest music, or exchanging photos.

“My students take what their tandem partners say seriously, and it sticks better than when we just cover the grammar in class. I think it is because they really get to experience the language in action and receive feedback from someone their age who can confirm (or deny) what they have learned in class,” says Dawn Nichols, a tandem faculty partner and lecturer of English at the University of Kassel in central Germany, an official UMBC exchange partner. “Their partners also add a little bit of context and experience to specific language choices and give them 1:1 attention, which is not always easy to do in every lesson.”

Overcoming linguistic and cultural barriers

The Tandem Conversation Program has evolved to be a vehicle for dismantling stereotypes and misconceptions about the United States and Germany. Liana Grosko, a geography and environmental systems junior with a German minor, was apprehensive about participating in the project. “German was halting for me, and no matter how much I prepared for it, there was always a learning curve when interacting with a native German speaker,” says Grosko. “My German fluency has much improved since we started talking, as well as my knowledge and appreciation of my culture’s place in the world and, of course, my friendship with Malin Heinrich, my tandem partner. I ended up getting to meet her in person in Munich early last year.”

Nichols attests to the improvement in fluency and accuracy, but also more unexpected benefits like a decrease in anxiety some German students experience when speaking English. She continues to be excited each time she hears students learn day-to-day language that is sometimes left out of textbooks and knowledge that helps them better understand American culture and critique their system. 

The program continues to have far-reaching effects. Smith has taken four classes with Macfarland and six with Sutton to date. She plans to visit Vienna this summer, where she hopes to connect for a second time with classmate and former German teacher Doris Hoelscher-Stanley, an MMLIC senior currently living in Hamburg, Germany. She first visited Hoelscher-Stanley in Hamburg on her trip to meet Krause-Traudes. Smith is not the only tandem participant to go beyond the virtual classroom. Last summer, Sutton and Macfarland had their own exchange in Leipzig, Germany, four hours from Lüneburg, where they attended a workshop on teaching German as a foreign language in the U.S. 

The tandem program inspired Emma Gebhard ’23, a psychology major with a German minor, to apply to the Congress-Bundestag Youth Exchange for Young Professionals program to study and work in Germany. She was one of 74 Americans chosen as a 2024 – 2025 fellow. Desire Hayes ’24, an English major with a German minor, put her skills to work studying abroad at Leuphana University Lüneburg, where she met Nele-Sophie Bauer, her German 202 tandem partner.

Other partners are making more plans to meet. “Now that the project has concluded for me, I can confidently say that it was a success. I have learned a great deal about American culture, and I feel much more confident in my English abilities. I no longer hesitate to start speaking English in everyday situations without any prior preparation,” says Heinrich, who was paired with UMBC student Liana Grosko. “The greatest success has been forming a friendship with Liana. We still communicate weekly, and I eagerly look forward to meeting her again in person this spring.”

“This tandem has put Baltimore on the map for some of my students, who generally only know something about California, Florida, and New York,” says Nichols at the University of Kassel. “Putting a very human and relatable face to the abstract concept of the United States—it’s normal to have some (mis)conceptions about people we don’t know. One part of this exchange that cannot be overvalued is how it helps our students see each other as real people and not just some image they see or read somewhere.”

Learn more about UMBC’s Modern Language, Linguistics, and Intercultural Communication German track options.

Middle school sweethearts, Ellyn Fennema and Joseph Patarini came to UMBC to pursue global studies (her) and geography and environmental studies (him). Despite their busy schedules, they were able to squeeze in a wedding between their sophomore and junior years, followed by a two-week van camping trip around Iceland. While it wasn’t their main goal for the trip, their majors seemed to align perfectly with learning about a new country and its geography. It wasn’t until Joseph found himself sitting outside Ellyn’s Research Methods in Global Studies and Approaches to Globalization classes with Felipe Filomeno, associate professor of political science and director of UMBC’s global studies program, that his interest was piqued by how to connect both their fields in a real-world setting.

“We used to carpool, so while I waited for her, I could hear Filomeno’s lecture,” says Joseph. “I was like, ‘Oh, he’s really cool and the discussions they have are really interesting.” Ellyn felt this was an excellent way to deepen his knowledge of the world. “Professor Filomeno makes learning these topics interactive and fun.” 

When Joseph learned about Filomeno’s 2024 Collaborative Online International Learning (COIL) Brazil project on climate change, he quickly enrolled. It equips students with the technical and interpersonal skills to thrive in professional online international and intercultural environments. COIL makes international scholarship and intercultural learning accessible by removing barriers of cost and travel while preparing students with essential skills for future in-person exchanges. COIL Brazil was part of Filomeno’s spring Global Citizenship class in collaboration with former colleague Clarissa Dri, a professor of international relations at his alma mater, Universidade Federal de Santa Catarina (UFSC, the Federal University of Santa Catarina), in southern Brazil. 

Dri’s expertise includes Brazilian foreign policy, international cooperation, and human rights. “Clarissa and I teamed up because we value intercultural exchanges. We were both international students,” says Filomeno. “Clarissa earned a Ph.D. from the University of Bordeaux in France. I earned mine at Johns Hopkins Hopkins as a Fulbright Scholar.”

The program enrolls Retrievers and Brazilian students to enhance their intercultural competence and knowledge of human rights, democracy, and climate change policy advocacy. Spring 2024 was its third iteration with plans of future offerings 

“COIL has become another major pedagogical tool I use for active global learning,” says Filomeno, noting along with Dri the growing interest in COIL from one day in the first year to four weeks in spring 2025 “The students are very interested and happy with the intercultural interactions, exploring cultural differences, and the possibility to interact in English,” says Dri. “They are amazed by the concrete possibility of talking to someone who is in the U.S. right now and to listen to what they think of our country.” 

Politics without borders

Ellyn saw COIL as a way for Joseph to combine his ongoing GES research with a global studies perspective. “Since Brazil holds the lungs of the earth—the Amazon rainforest—getting the ideas and perspectives of Brazilian students would be valuable for his future career.” Before participating in COIL, Joseph’s understanding of Brazil was at a more physical level. At the GES research lab, he tracked forest plantations, deforestation, and land use change using global satellite imagery. COIL was an extra opportunity to develop a personal, qualitative understanding of land-use change, deforestation, and Brazilian environmental policies.

Filomeno and Dri coordinated the classes on Webex to align with the one-hour time difference. Students implement online social science research methods to gather and analyze data in 10 to 30-minute increments before sharing their findings. Each group schedules time outside of class to further their research and final presentations.

In Joseph’s class, students took on roles from various U.S. and Brazilian constituents including political parties, worker’s unions, philanthropic organizations, and Brazilian indigenous rights groups. Teams researched their constituents’ climate stance and proposed two goals for the their country to pursue at the 2025 United Nations Climate Change Conference. Joseph’s group proposed that the Bill and Melinda Gates Foundation focus on developing and deploying green technologies in agriculture and biodiversity preservation in Brazil.

Courage in politics

Gustavo Peres, a first-year international relations student at UFSC, believes it takes courage to actively engage in international political discourse. Initially, Peres was hesitant to apply to COIL Brazil 2023 because of the English language requirement but he was intrigued by the subject material which focused on democracy in the context of the presidential elections in the U.S. in 2020 and in Brazil in 2022.  

“I could have just seen the email and said, ‘No, it’s not for me because I felt a little bit intimidated to be judged about how I speak,” says Peres, a native Portuguese speaker and English language learner. He followed his COIL experience with an internship in international trade. “I can lose a big opportunity to practice English and also know more about other people, their culture, and other things that are very valuable to our life. The West can provide a lot of things to other countries, but I think the other countries can also give a lot to the West.”

UMBC students were surprised by Brazil’s universal public healthcare and free public education without student loans or copays to receive medical care. UFSC students were intrigued that the U.S. lacks compulsory voting. “In Brazil, if you are 18, you have to vote or pay a small tax,” says Peres. “But it’s good that in both Brazil and the U.S. you can vote. I think the voting process is something very important and valuable for democracies.”

Paths to global understanding

Filomeno says students in the U.S. often think about democracy in procedural terms—free and fair elections, the rule of law, etc. “Brazilian students tend to emphasize substantive aspects of democracy—people’s right to education and health care, equality of economic opportunity, etc.,” says Filomeno. “Through dialogue, they realize their understanding of democracy is culturally specific.” 

Filomeno is all too familiar with these cultural differences. When he left Brazil for graduate school in the U.S., he became aware of his way of being. “My ancestors came from Portugal, Lebanon, Italy, and other countries. These cultures appeared in my family’s cuisine, language, and traditions,” says Filomeno. “I realized that the food I was used to eating was not just food but Brazilian food, that the way I greeted people in hallways was not just how people greet each other but how Brazilians greet each other.”

The Patarinis were inspired to fulfill Ellyn’s global studies education abroad requirement together—spending their senior summer in Morocco and Spain. “I felt very excited and fortunate,” says Ellyn. “Many things had to line up to make it happen; however, we put a lot of effort into the application for the CAHSS Dean’s Education Abroad Scholarship process, which made it all possible.”

The Patarinis celebrated their first anniversary in traditional Moroccan style with their friends and host family in Rabat the capital of Morocco during their UMBC faculty-led Intercultural Communication in Morocco and Spain education abroad classes. COIL and education abroad lay the groundwork for students to continue learning and engaging with the world beyond the U.S. Even with busy careers, Ellyn and Joseph plan to continue making time for travel. “Reading and studying global issues is one thing, but experiencing them firsthand offers an entirely new perspective—it ignites a deeper understanding and fuels a powerful drive to create meaningful change,” says Ellyn.

Register for Global Studies Spring 2025 classes.
Learn more about UMBC’s political science department and global studies program on Instagram @global.umbc.

A new study in Naturefinds that up to 215 million hectares of land (an area larger than Mexico) in humid tropical regions around the world has the potential to naturally regrow. That much forest could store 23.4 gigatons of carbon over 30 years and also significantly help enhance biodiversity and water quality. The study showed that more than half of the area with strong potential for regrowth was in five countries: Brazil, Mexico, Indonesia, China, and Colombia. 

“Tree planting in degraded landscapes can be costly. By leveraging natural regeneration techniques, nations can meet their restoration goals cost effectively,” says the study’s co-lead author, Brooke Williams, a researcher at  the Queensland University of Technology, Australia, and the Institute for Capacity Exchange in Environmental Decisions. “Our model can guide where these savings can best be taken advantage of,” she says. 

A culmination of decades of work

Matthew Fagan, associate professor of geography and environmental systems at UMBC and second author on the new study, developed a data set the authors relied on.

In that work, “We used satellite images to identify millions of small areas where tree cover increased over time. We then excluded the areas planted by humans with machine learning, focusing on natural regrowth,” Fagan says. The study tracked regrowth between 2000 and 2012, and then checked if the regrowth was maintained through 2015. “Those natural patches were the input data for this novel study,” he says, “the first to predict where future forest regrowth will occur, given observed past regrowth.” 

The study, co-led by Hawthorne Beyer, head of geospatial science at Mombak, a Brazilian startup which aims to generate high-quality carbon credits through reforestation of the Amazon, and director of science at Institute for Capacity Exchange in Environmental Decisions, also pulled in global data sets describing factors like soil quality, slope, road and population density, local wealth, distance from urban centers and from healthy forest, and more. “Any time you build one of these global studies, you’re standing on the backs of so many other scientists,” Fagan says. “Each one of these studies represents years of work.”

The study found that the factors most strongly associated with high regrowth potential were a patch’s proximity to existing forest, the density of nearby forest, and the content of carbon in the soil. Those factors in particular “seem to do a really good job explaining the patterns of regrowth we see across the world,” Fagan says. Being close to existing forest, for example, is key to supplying a variety of seeds to the area to support diverse regrowth, Fagan explains. 

Keeping it local—by supplying a global map

The end product of the study is a digital map of the global tropics, where each pixel—representing 30 x 30 square meters of land—indicates the estimated potential for regrowth. That map, made possible by n extensive international collaboration of researchers, is a boon to environmentalists worldwide hoping to advocate locally for their efforts.

“Our goal and our hope is that this is used democratically by local people, organizations, and localities from the county level all the way up to the national level, to advocate for where restoration should happen,” Fagan says. “The people who live there should be in charge of what happens there—where and how to restore really depends on local conditions.”

Fagan points out that some of the potential regrowth areas the study identified are unlikely to be restored for a variety of reasons, such as being in active use for ranching or crops or located on prime real estate near roads and urban centers. However, a meaningful portion of the 215 million hectares is abandoned and degraded cattle pastures or previously logged forests, where encouraging natural regeneration would have minimal cost to local economies and a long list of benefits.

“If you restored that to rainforest, the benefit to water quality, water provision, local biodiversity, and to soil quality would be immense,” Fagan says. “It would also be an immense benefit for pulling carbon out of the atmosphere, so really it’s just a question of, ‘Where can we do this most efficiently?’ That’s what this paper is all about.”

Most people wouldn’t guess horseshoe crabs—ancient arthropods with hard, round carapaces and long, spiky tails—when asked what animals you might find in a K-12 classroom. But Jessica Baniak ’23, biological sciences, is collaborating with the Maryland Department of Natural Resources (DNR) to shift kids’ perspectives of the alien-looking critters and create opportunities for inquiry-based learning.

Today, Baniak is a student in the ICARE program, an environmental science master’s program led by UMBC biology professor Tamra Mendelson. ICARE students study local environmental issues and include community partners on their master’s thesis committees. 

Horseshoe crabs congregate on Maryland and Delaware beaches to mate each spring, and the last two years Baniak has collected some of their eggs with a research permit from the Maryland DNR. Each female can produce upwards of 20,000 eggs. Baniak takes the eggs back to a lab at the Institute of Marine and Environmental Technology (IMET), a multi-institution research facility on Baltimore’s Inner Harbor, and raises them until they’re about a centimeter across. 

Then Baniak delivers the baby crabs to elementary, middle, and high school classrooms in Howard, Carroll, and Baltimore counties. This year, 10 schools received crabs. Some teachers use the crabs in their curriculum, and some crabs are tended by student environmental clubs. Students run basic experiments that develop their science reasoning skills, like comparing growth rates in different hatchery setups. 

Finding the sweet spot

It’s tricky to successfully raise the crabs to adulthood. Baniak visits each classroom a couple of times a year and makes suggestions to improve the crab habitats. Factors like feed, temperature, salinity, and more play a role in their survival. For her master’s research, Baniak is working out the ideal setup for successful crab-rearing with a focus on temperature. Higher temperatures produce faster growth, but some baby crabs perish in the heat. Cooler temps cut the mortality rate, but slow growth. 

Baniak’s goal is to find the sweet spot that produces the most healthy crabs in a short amount of time. Why does efficiency matter? Because eager students aren’t the only ones interested in raising crabs.

Companies extract a compound from horseshoe crab blood that is used to detect bacterial contamination in pharmaceuticals. The blood can’t be harvested until the crabs are about 10 years old, Baniak explains, so raising them in captivity isn’t economical (it’s also challenging). Instead, reintroducing young crabs to their natural habitat is “a way that companies can help mitigate how much they’ve taken out of the wild,” Baniak says. Baniak’s work will help optimize these reintroduction programs for the industry—and at the same time, give kids a unique learning opportunity.

‘Everything all at once’

As a child, the National Aquarium in Baltimore—directly across the pier from IMET—inspired Baniak to pursue marine biology. Today her experiences range well beyond horseshoe crabs. As an undergraduate, she had a summer internship at an oyster hatchery. “During the breeding season—that’s when you work really long hours,” she says. “You have to do everything all at once.”

Counting surviving oysters, mating specific oyster pairs, and cleaning tanks—all while squeezing in work on experiments running at the hatchery—filled her days. One project involved developing a protocol to anesthetize oysters, which made it possible to collect tissue samples without killing the oyster. Baniak also assisted with the hatchery’s softshell clam initiative.

For another internship, she worked at the Maryland Pesticide Education Network, which promotes safer alternatives to harmful pesticides. During the academic year, she found time to participate in UMBC’s tae-kwon do club and play club volleyball. 

Sharing the joy in science

After she graduates with her master’s next spring, Baniak hopes to move on to a role in a federal agency like the U.S. Fish and Wildlife Service. She wants to continue to contribute to outreach programs like the horseshoe crab project. 

“That’s my motivation for continuing in science, because I want to make more programs like that,” Baniak says. “I like ICARE because you’re working with other people in the community and not just researching a really niche subject.”

After she transferred to UMBC during the pandemic to be closer to home, UMBC faculty members helped her stay committed to her biological sciences degree. Maggie Holland, professor of geography and environmental systems, “brought back the joy into science after returning from online learning,” Baniak says. “She seemed to genuinely care about me as a student and about the subject she was teaching.”

Mendelson, too, made an impact. “She’s put a lot of effort into the ICARE program and wants to see all of us succeed,” Baniak says.

At the end of the school year, Baniak will travel with the students to release their horseshoe crabs at Sandy Point State Park and watch them wriggle across the sand and swim into the Chesapeake Bay, heading for life’s next phase. 

Most people wouldn’t guess horseshoe crabs—ancient arthropods with hard, round carapaces and long, spiky tails—when asked what animals you might find in a K-12 classroom. But Jessica Baniak ’23, biological sciences, is collaborating with the Maryland Department of Natural Resources (DNR) to shift kids’ perspectives of the alien-looking critters and create opportunities for inquiry-based learning.

Today, Baniak is a student in the ICARE program, an environmental science master’s program led by UMBC biology professor Tamra Mendelson. ICARE students study local environmental issues and include community partners on their master’s thesis committees. 

Horseshoe crabs congregate on Maryland and Delaware beaches to mate each spring, and the last two years Baniak has collected some of their eggs with a research permit from the Maryland DNR. Each female can produce upwards of 20,000 eggs. Baniak takes the eggs back to a lab at the Institute of Marine and Environmental Technology (IMET), a multi-institution research facility on Baltimore’s Inner Harbor, and raises them until they’re about a centimeter across. 

Then Baniak delivers the baby crabs to elementary, middle, and high school classrooms in Howard, Carroll, and Baltimore counties. This year, 10 schools received crabs. Some teachers use the crabs in their curriculum, and some crabs are tended by student environmental clubs. Students run basic experiments that develop their science reasoning skills, like comparing growth rates in different hatchery setups. 

Finding the sweet spot

It’s tricky to successfully raise the crabs to adulthood. Baniak visits each classroom a couple of times a year and makes suggestions to improve the crab habitats. Factors like feed, temperature, salinity, and more play a role in their survival. For her master’s research, Baniak is working out the ideal setup for successful crab-rearing with a focus on temperature. Higher temperatures produce faster growth, but some baby crabs perish in the heat. Cooler temps cut the mortality rate, but slow growth. 

Baniak’s goal is to find the sweet spot that produces the most healthy crabs in a short amount of time. Why does efficiency matter? Because eager students aren’t the only ones interested in raising crabs.

Companies extract a compound from horseshoe crab blood that is used to detect bacterial contamination in pharmaceuticals. The blood can’t be harvested until the crabs are about 10 years old, Baniak explains, so raising them in captivity isn’t economical (it’s also challenging). Instead, reintroducing young crabs to their natural habitat is “a way that companies can help mitigate how much they’ve taken out of the wild,” Baniak says. Baniak’s work will help optimize these reintroduction programs for the industry—and at the same time, give kids a unique learning opportunity.

‘Everything all at once’

As a child, the National Aquarium in Baltimore—directly across the pier from IMET—inspired Baniak to pursue marine biology. Today her experiences range well beyond horseshoe crabs. As an undergraduate, she had a summer internship at an oyster hatchery. “During the breeding season—that’s when you work really long hours,” she says. “You have to do everything all at once.”

Counting surviving oysters, mating specific oyster pairs, and cleaning tanks—all while squeezing in work on experiments running at the hatchery—filled her days. One project involved developing a protocol to anesthetize oysters, which made it possible to collect tissue samples without killing the oyster. Baniak also assisted with the hatchery’s softshell clam initiative.

For another internship, she worked at the Maryland Pesticide Education Network, which promotes safer alternatives to harmful pesticides. During the academic year, she found time to participate in UMBC’s tae-kwon do club and play club volleyball. 

Sharing the joy in science

After she graduates with her master’s next spring, Baniak hopes to move on to a role in a federal agency like the U.S. Fish and Wildlife Service. She wants to continue to contribute to outreach programs like the horseshoe crab project. 

“That’s my motivation for continuing in science, because I want to make more programs like that,” Baniak says. “I like ICARE because you’re working with other people in the community and not just researching a really niche subject.”

After she transferred to UMBC during the pandemic to be closer to home, UMBC faculty members helped her stay committed to her biological sciences degree. Maggie Holland, professor of geography and environmental systems, “brought back the joy into science after returning from online learning,” Baniak says. “She seemed to genuinely care about me as a student and about the subject she was teaching.”

Mendelson, too, made an impact. “She’s put a lot of effort into the ICARE program and wants to see all of us succeed,” Baniak says.

At the end of the school year, Baniak will travel with the students to release their horseshoe crabs at Sandy Point State Park and watch them wriggle across the sand and swim into the Chesapeake Bay, heading for life’s next phase. 

Spring on UMBC’s main campus brings a host of familiar sights and sounds: blooms on the magnolia trees, the chatter of red-winged blackbirds calling from the reeds around Library Pond, greening grass on the campus Quad, and black-and-gold-bedecked Grit Guides leading groups of prospective Retrievers around what may soon become a home away from home.

The guides cover the usual highlights—Academic Row, the Retriever Activity Center, the AOK Library, eating establishments, and residential halls. UMBC is a place to live, to learn, and to find community. And while some of the functions of campus spaces are obvious, others are often hidden.

Look more closely, and you’ll see faculty and students turning the everyday infrastructure and green oases of UMBC into out-of-the-ordinary laboratories. Beeswax sculptures, tactile maps, robots helping other robots—read on to discover some of the amazing ways Retrievers are using the campus itself for experiential learning and diverse research.

Written by: Catherine Meyers & Sarah L. Hansen, M.S. ’15

Two students wearing knee-high waders stand several meters apart in the middle of a rapidly flowing stream at the north end of UMBC’s campus. One releases a Ping-Pong ball, which bobs along with the current, as the second starts a timer, stopping it when the ball reaches his feet to determine the stream’s flow rate.

Nearby, another student measures the size of rocks in the streambed using a device called a gravelometer—a rectangular piece of metal with square holes of various sizes. The smallest hole a given rock will fit through becomes its measurement.

Farther along, other students capture photos that include reference posts on the stream bank. Each small group of students also takes measurements of the water depth at one-foot intervals along strings hung from one bank to the other. The students (with the help of specialized software) will use these measurements and photos to generate 3D models of the streambed.

“It’s a little DIY, but we get some amazing pictures,” says Charles Kaylor, the instructor and director of GIS and cartography labs in the Department of Geography and Environmental Systems (GES).

This is the “stream lab” in Exploring the Environment: A Geospatial Perspective, a course best known in the UMBC community for its semesterly launch of a dozen or so brightly-colored balloons that dot the campus skyline. Throughout the semester, students train their brains in the ways geographic data can help answer a wide range of research questions.

For the students, there are a range of perks to the course. “It’s cool to see different applications of computer science, which can sometimes feel pretty theoretical,” says George Rush ’24, computer science. Luke Thomas ’27, GES, who was partnered with Rush, is grateful for the senior’s support with the programming aspects of the coursework.

Rhonda Plofkin, Ph.D. student in GES and the graduate assistant for the class, concurs that having students with different strengths facilitates peer learning. “This is real-life stuff that geomorphologists do in the field,” she adds.

For some, the benefits are just as real, but simpler: “The cold water wakes me up,” Anthony Roytenberg ’24, computer science, says with a smile.

When Alieh Rezaei arrived at UMBC from Iran, she couldn’t take her eyes off the ground. Almost immediately she was mesmerized by the flora and fauna of her new residence, and as an master of fine
arts student in the intermedia and digital arts (IMDA) program, she decided to incorporate pieces of UMBC into her artwork. She walked around campus, picking up windfalls of seeds and exploring hidden nooks of nature. A place that would come to be her sanctuary,
Rezaei, M.F.A. ’22, says, was Joseph Beuys Sculpture Park.

“The solidity of the stones alongside the growth of the oaksand the evolving shape of the garden reflect concepts of erosion and growth,” says Rezaei. “As an immigrant, I found solace in my attachment to the settled and solid stones, representing a sense of
grounding to me.”

Rezaei was drawn to UMBC’s M.F.A. program because of its multidisciplinary approach and the freedom she felt to choose an unconventional path. She praised Kathy O’Dell, IMDA professor emerita, who was her advisor. “Kathy was someone who—it was like I was floating in the air and Kathy held my hand and grounded me. She was very supportive for the whole journey.”

A photograph from Rezaei’s three-hour performance “The Tongue in the Landscape” at the Joseph Beuys Sculpture Park featuring the artist laboriously peeling the wax layer off the pieces of bark. Photo courtesy of Rezaei.

To create the art for her thesis project, Rezaei used almost exclusively materials collected on or near campus, including fallen tree bark, shattered wood, and seeds. She bought her main material—beeswax— from Baltimore beekeepers. One piece, “The Collective Womb,” featured hundreds of native seeds, called Devil’s Darning Needles, held together by beeswax around orange peels.

When the pieces were finished, Rezaei immediately knew the stage she wanted to showcase them on—Joseph Beuys Sculpture Park. “I installed my pieces there and had a performance as a way to extend the concept of public sculpture, aiming to reactivate the space and revive the concept of ecological engagement central to Beuys’ 7000 Oaks project.”

A composite of several microscope images of phages discovered by UMBC students in the Phage Hunters program demonstrates the variety of shapes phages can take. Photo by Tagide deCarvalho.

IchabodCrane. MindFlayer. Annihilus. TonyStarch. These are viruses previously completely unknown to science discovered by UMBC students in the Phage Hunters program, a two-course undergraduate genetics and bioinformatics sequence. 

Since its launch in 2008, UMBC students have discovered 661 viruses that infect bacteria, called phages. Ninety-seven of them originated in samples collected on campus, with the most popular location being the Library Pond. Seventy-seven phages have been sequenced and 60 have been fully characterized and submitted to GenBank, an international digital repository of genetic and protein sequences. 

Steven Caruso ’94, Ph.D. ’02, biological sciences, principal lecturer of biological sciences, runs the genetics course where the students collect samples, isolate their phages, image them with help from Tagide deCarvalho, “and growth,” says Rezaei. “As an immigrant, I found present their findings. They learn foundational laboratory techniques and get a taste for research. 

Phage Hunters gives students “a first glimpse of what research is, with all that goes with it: determination, grit, inspiration, frustration, and more,” says Ivan Erill, professor of biological sciences and co-instructor for the bioinformatics course with Caruso. “Students get to see all the possible outcomes of a research project, from total success culminating in a DNA extraction for sequencing to failure to isolate a phage in the first place.”

In the basement of the Meyerhoff Chemistry Building, in a tiled expanse called the Molecular Characterization and Analysis Complex, sits a sleek, roughly human-sized instrument with the power to measure extremely tiny amounts of chemicals. Amanda Belunis, a chemistry Ph.D. student now in her final year, knows the instrument like an old friend, having turned to it to analyze a smorgasbord of UMBC water samples.

Belunis studies a group of chemicals called per- and polyfluoroalkyl substances, or PFAS. The chemicals are used in products as varied as makeup, clothing, and fire-fighting foam and are found in trace amounts in many water sources as well as in human blood. Dubbed “forever chemicals” because of the way they persist in the environment, they present a growing concern to human health. 

Belunis’s research is part of a growing effort by scientists to understand how PFAS enter and travel through the environment and, ultimately, figure out ways to remove them.

To validate her procedures for measuring PFAS concentrations, Belunis tested water from drinking fountains, the sink in her chemistry lab, the pool, and the pond and streams around UMBC, all of which contained trace amounts of PFAS, as would be expected. Confident her methods worked on real-life samples, she then turned her attention to analyzing water in aquaculture fish tanks.

“My lab mates and I sometimes discuss how all of us have these chemicals in our bodies,” says Belunis. “It’s concerning, which is why we need to do more studies.” 

Amanda Belunis prepares samples for later analysis in the Molecular Characterization and Analysis Complex. Photo by Catherine Meyers.

When asked how to measure the height of a building, most students in Math in Action, a new laboratory course for non-STEM majors, “came up with various ways to measure the height directly—for example, by dropping down a string and then measuring the string or stacking up various objects,” says Alexis O’Malley ’18, mathematics and psychology, who teaches the lab. 

But today, students are peering along the edges of homemade clinometers—plastic protractors with drinking straws attached—taking measurements from safely on the ground with a meter stick, and running simple calculations based on the properties of triangles to measure the height of UMBC’s Administration Building (123 feet, 2 inches). 

Throughout the course, “I want students to see how math can be used to solve problems creatively,” O’Malley says.

Math in Action covers different math concepts each week through hands-on activities. The purpose of the clinometer activity is to remind students that “science is based on measurement, and you can build a tool to measure almost anything,” shares William R. LaCourse, dean of the College of Natural and Mathematical Sciences, who originally generated the idea for the course to help a wider range of students develop math skills relevant to their everyday lives. The course, he adds, “is a doorway to a lot of different math concepts.” 

Shawn Abraham ’24, political science, has gotten lost on the UMBC campus more times than he can remember. As a blind student, he finds his way using a white cane, auditory cues, mental maps, and by asking people for directions. “People are surprised when I tell them, but big cities are much easier to navigate,” Abraham says. “College campuses are hard to get around.”

Tactile maps are one tool that could help. Erin Higgins and Kirk Crawford, Ph.D. students in human-centered computing, have recently been working with blind students at UMBC to create and test 3D-printed maps of campus. 

The researchers launched the project after being approached by Michael Canale, assistant director of the Office of Student Disability Services. He says UMBC currently has four completely blind students enrolled and his office wants to provide personalized maps that each student can carry with them as they navigate campus. He’d also like to see a large 3D-printed map mounted somewhere on campus.

“A beautiful tactile map could be used by visitors of all kinds,” Canale said. “It’s the principle of universal design.”

Meanwhile, Md Osman Gani, an assistant professor of information systems, is spearheading a new project, named MyPath, to develop a Google Maps–style app to help wheelchair users navigate campus. 

“Uneven surfaces, discontinuous sidewalks, and steep slopes can make wheelchair travel challenging, and even impossible” Gani says. The MyPath app would help by providing users with personalized turn-by-turn navigation with real-time updates. The app will rely on a machine learning model that recognizes path accessibility conditions based on crowd-sourced data, and Gani is currently recruiting wheelchair users to contribute data using their smartphones.

Shawn Abraham (left) tests prototype tactile maps made with 3-D printers with Michael Canale (right).

It’s 7 a.m. in July, and Megan Curtiss ’23, GES, is standing next to a tree just outside The Loop on UMBC’s southeast corner. It’s wrapped in a thin metal band at about chest height. Curtiss carefully measures the small gap between the two ends of the band with digital calipers three times, takes the average, and then moves on to the next tree. Only 98 to go.

This scene played out weekly from March to October 2023 as Curtiss collected data for a study led by Matthew Baker, GES professor, and Nancy Sonti, a research ecologist with the U.S. Forest Service. “It became like a morning meditation,” Curtiss shares.

The metal bands, call dendrobands, “are a cheap and easy way to get pretty detailed information,” Curtiss says. By measuring the trees’ growth over time, the goal is to look at how trees of different species and in different immediate environments (such as a parking lot versus a forest) handle conditions like fluctuating temperatures and water availability. 

After attending Anne Arundel Community College in her 30s, Curtiss then found a home at UMBC. She began working with Baker in fall 2022 and will enter the GES master’s program at UMBC this fall. A graduate degree was not something Curtiss originally planned on, but now she’s excited about the further experiences it will bring. “I’m looking forward to the unexpected,” Curtiss says. 

Take a left off Hilltop Circle, just past the greenhouse on the right and toward the Walker Avenue apartments, and you’ll find yourself outside a traditional brick building that used to house trial rooms and detention cells. In 2021, UMBC turned this former courthouse into the main hub for the Center for Real-time Distributed Sensing and Autonomy (CARDS). Researchers here develop artificial intelligence-enabled smart robots for military and search-and-rescue operations.

On a sunny day in spring, you will likely see students gathered in the courthouse’s “backyard,” huddled around dog-like Spot robots and wheeled vehicles called Jackals and Huskies.

The researchers outfit the robots with a host of custom devices, such as cameras and radar to sense their surroundings and microprocessors to run on-board algorithms. While the robots can be commanded via voice and gesture, the ultimate goal is for them to operate mostly autonomously. 

Recently, the team has demonstrated this capability by verbally assigning the robots the task of jointly surveying a given area. The robots must translate the instructions from plain English into machine-level commands, divide up duties, detect and avoid obstacles, come to a fellow robot’s aid in the case of unexpected problems, and identify and keep track of the objects and people within their assigned perimeter.

“People from around campus will see us testing and will stop to watch,” says Aryya Gangopadhyay, a professor in information systems who directs CARDS. “The robots are an attention getter.” 

Erin Hamner collected weekly water quality data from this stream for six months, using the battery-powered digital probe she’s holding. (Image by Sarah L. Hansen, M.S. ’15)

After traipsing across a swampy field between research sites, Erin Hamner ’22, GES, and a current master’s student in the Interdisciplinary Consortium for Applied Research in the Environment program, scampers down a streambank in thigh-high waders and plunges a battery-powered probe into the water. It reports concentrations of ammonia and nitrates—key water quality measures. The probe also measures the water’s conductivity, which indicates the level of ions, such as salts used to melt snow. 

It’s beautiful out today, but Hamner completed the trek to a dozen campus sites weekly from September 2023 to February 2024, sometimes dealing with mud, snow, or rain. The goal of her master’s thesis is to confirm that stormwater management features UMBC has installed to reduce flooding, filter storm runoff, and otherwise improve water quality are working as intended—or if they aren’t, to suggest improvements.

Hamner and her collaborators in Facilities Management and the Office of Sustainability want to see the data collection effort continue after she graduates. So she is working with faculty in GES to incorporate crowd-sourced stormwater monitoring into the undergraduate curriculum, including generating a public dashboard.

“Erin has done incredible groundwork collecting water quality data across our campus, generating useful data that can tell us about the health of UMBC’s waterways,” says Taylor Smith, assistant director of sustainability. 

Long-term data will help the university “see how our development affects our watershed so we can continue to be good stewards,” Smith adds, noting that, “data like Erin’s can help us advocate for more greenspace and stream buffers around campus.”