Creating a Sustainable Future: 5 Essential Reads
By Jennifer Weeks
Much news about the environment in 2017 focused on controversies over Trump administration actions, such as proposals to promote more use of coal and budget cuts at relevant federal agencies. At the same time, however, many scholars across the U.S. are pursuing innovations that could help create a more sustainable world. Here we spotlight five examples from our 2017 archives.
1. Restoring the Rio Grande
Although many Americans may not realize it, the U.S. and Mexico work together on many environmental issues along their joint border, including drinking water, sanitation and flood control. Gabriel Diaz Montemayor, assistant professor of landscape architecture at the University of Texas at Austin, proposed a bolder vision: greening the entire Rio Grande Valley, which forms more than half of the border.
Restoring vegetation along the river and creating more green space along both sides would help improve river flow and water quality, Montemayor wrote. And it could make the border region an attraction that brings Mexicans and Americans together:
"As the Rio Grande advances to the Gulf of Mexico, it cuts through incredibly valuable, beautiful and remote landscapes, including Big Bend National Park in Texas and the Cañon de Santa Elena, Ocampo, and Maderas del Carmen reserves in Mexico. Traveling its length could become a trip comparable to hiking the Appalachian Trail, with opportunities to see recovering natural areas and wildlife and learn from two of the world's richest cultures."
2. Making jet fuel from sugarcane
Jet airplane travel is one of the world's fastest-growing greenhouse gas emissions sources. For this and other reasons, including concerns about oil price spikes, there is growing interest in producing jet fuel from non-petroleum sources.
Researchers at the University of Illinois are working on making jet fuel from sugarcane, an abundant and low-cost source. But they are doing it with a twist. Instead of fermenting cane juice into an alcohol-based fuel, as Brazil already does for motor vehicles, they have engineered the cane to produce oil that can be used to make biodiesel.
This engineered version, which they call lipidcane, could become a lucrative crop. "We calculate that growing lipidcane containing 20 percent oil would be five times more profitable per acre than soybeans, the main feedstock currently used to make biodiesel in the United States, and twice as profitable per acre as corn," the authors wrote. They also are engineering it to be more cold tolerant so that it can be grown on marginal land in the southeastern U.S.
3. A legal right to a clean environment
Are all humans entitled to live in a clean and healthy environment? West Virginia University legal researcher Nicholas Stump and his colleagues are exploring this proposal in a challenging setting: Appalachia, where mining and logging have severely damaged the environment and polluted the air, water and soil. Appalachia is well-suited for a bottom-up, critically informed approach that focuses on human rights at the grassroots level, he wrote:
"Discussing rights at the local level will give people opportunity to describe specific harms they have experienced from activities such as mountaintop removal and fracking. It also will help to promote participatory democracy for citizens who have long been denied real self-determination."
This work is part of West Virginia University's new Appalachian Justice Initiative, which will include research, advocacy and direct legal services and outreach to Appalachian communities. "Our goal is to help people in our region call for laws and actions that actually guarantee the right to a healthy Appalachian environment," Stump explained.
4. Stemming world hunger with marine microalgae
Feeding a growing world population sustainably in the coming decades will be a major environmental challenge. Large-scale farm production pollutes air and water, generates greenhouse gas emissions and degrades soil.
William Moomaw, professor of international environmental policy at Tufts University, and Asaf Tzachor, a Ph.D. candidate at University College London, see marine microalgae as a key untapped resource. These tiny organisms live in fresh and salt water, and form the base of marine food chains. They are the sources of the omega-3 fatty acids and amino acids that humans get by eating fish. Moomaw and Tzachor call for "cutting out the middle fish" and developing foods based directly on microalgae.
"Most algae-based products are marketed in the United States as dietary supplements, but we believe the time has arrived to introduce algae-based foods to the dining table," they wrote.
Microalgae can be grown in open ponds or sealed tubes in a laboratory. Moomaw and Tzachor calculate that producing one kilogram of beef-sourced essential amino acids would require 148,000 liters of freshwater and 125 square meters of fertile land. In contrast, producing the same amount from an omega-3 rich microalgae called Nannochloropsis oculata, raised in an open pond with brackish water, would require only 20 liters of freshwater and 1.6 square meters of nonfertile land.
5. Understanding biodiversity in cities
Sustainable strategies for the future don't have to be technically complex or sweeping. Geographer Christopher Swan of the University of Maryland, Baltimore County, studies biodiversity in parks, backyards and other natural areas around the city of Baltimore. Swan wants to see what species thrive in cities and how human activities affect them.
As urban dwellers build and remodel houses and develop neighborhoods, they divide urban space into small units with many edges, Swan has found:
"This benefits species that thrive at edges, like white-tailed deer and nuisance vines, but harms others that require larger interior habitats, such as certain birds. As human activities create a more fragmented environment, it becomes increasingly important to create linkages between natural areas, such as preserved forests, to maintain populations and their biodiversity."
Humans also move species around: They bring plants into their yard, and trap and remove nuisance animals such as squirrels.
Swan is working with his students to identify native plant species that can thrive in poor urban soils, and to identify species traits—such as offering habitat for pollinating insects—that can make species valuable in urban settings. With information like this, city managers can restore and support urban wildlife, making cities more inviting places to live.
Reposted with permission from our media associate The Conversation.
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By Kristen Fischer
It's going to be back-to-school time soon, but will children go into the classrooms?
The American Academy of Pediatrics (AAP) thinks so, but only as long as safety measures are in place.
Keeping Schools Safe<p>What will safer schools look like?</p><p>In a <a href="https://jamanetwork.com/journals/jama/fullarticle/2766822" target="_blank">JAMA article</a> published last month, <a href="https://www.jhsph.edu/faculty/directory/profile/1781/joshua-m-sharfstein" target="_blank">Dr. Joshua Sharfstein</a>, a pediatrician and professor at the Johns Hopkins Bloomberg School of Public Health, outlined suggestions — many of which are similar to AAP's.</p><p>Remote learning protocols must stay in place, especially as some schools stagger home and in-building learning. If another shutdown needs to occur, children will rely on distance learning completely, so it must be easy to switch to, he said.</p><p>He suggested giving parents a daily checklist to document their child's health. Kids should be screened quickly on arrival and be given hygiene supplies. Maintenance staff should use appropriate PPE and have regular cleaning schedules. A notification system should be in place if a case is identified, Sharfstein recommended.</p><p><a href="https://www.albany.edu/rockefeller/faculty/erika-martin" target="_blank">Erika Martin</a>, PhD, an associate professor of public administration and policy at University at Albany, said nutrition assistance and health services should be included. She called for tutoring programs with virtual options as well as technology access.</p>
Supporting Staff<p>Teachers and staff will be affected by safeguarding measures, noted <a href="https://directory.sph.umn.edu/bio/sph-a-z/rachel-widome" target="_blank">Rachel Widome</a>, PhD, an associate professor of epidemiology and community health at University of Minnesota.</p><p>"In order for all of the in-school precautions to work well, we'll be asking a lot of teachers and staff," Widome told Healthline. In addition to their usual workload, they'll now be asked to monitor mask-wearing, ensure children are keeping distance, and be aware of any symptoms.</p><p>Along with Sharfstein, Widome called for an increase in financial support. More employees will likely be required so teachers and staff members can keep up with the added demands.</p>
Should Kids Go Back?<p>While these guidelines may help get some schools to reopen, many people don't think children should go back to school over fears they could contract the disease and spread it to other vulnerable family members like grandparents, infant siblings, or their parents.</p><p>In a <a href="https://pediatrics.aappublications.org/content/early/2020/07/08/peds.2020-004879" target="_blank">Pediatrics</a> commentary, <a href="https://www.md.com/doctor/william-raszka-md" target="_blank">Dr. William V. Raszka, Jr.</a>, an infectious disease specialist at The University of Vermont Medical Center, argued that schools should open because school-aged children are far less important drivers of COVID-19 than adults.</p><p>But he says the risk and benefit is not equal among all students ages 5 to 18.</p><p>"Elementary schools are arguably higher priority for face-to-face schooling, since younger children are at lower risk for infection and transmission, and since parental supervision of younger children's distance learning may be particularly challenging," added Sorensen, who penned a <a href="https://jamanetwork.com/channels/health-forum/fullarticle/2767411" target="_blank">June article in JAMA</a> with reopening tips. "That means middle and high schools are more likely to emphasize distance learning."</p><p>Specific student populations, such as special education students and students with disabilities, would also benefit greatly from more time spent in face-to-face environments, Sorensen said.</p>
What Parents Can Do<p>Parents should ask for and receive frequent updates from schools about plans for the fall. They should also be informed about plans if and when COVID infections are identified, Sharfstein said.</p><p>"I'd like to see parents investing now, during the summer, in doing things that can slow and stop the spread of the virus in their communities," Widome said.</p><p>"Now is a good time for kids to practice wearing masks and get used to them as they may be wearing them for longer stretches if school starts up in person," Widome suggested.</p><p>She recommends parents try different mask designs and materials to see what children are more comfortable wearing.</p><p>"If you are using cloth face coverings, it's good to have extras on hand," Widome added.</p><p>Parents should model healthy behavior at home and while out in public — another thing that could affect how well children adapt to reopening practices, Sorensen said.</p><p>"Children may want to know more about face coverings," added <a href="https://www.linkedin.com/in/leescott/" target="_blank">Lee Scott</a>, chairwoman of the Educational Advisory Board at <a href="https://www.goddardschool.com/" target="_blank">The Goddard School</a>. "Dramatic play, such as creating or wearing a face covering, may help some children adjust to this concept." Schools can also show children photos of what faculty members look like in their masks so the students are familiar with that appearance.</p><p>Johns Hopkins University recently released its eSchool+ Initiative, a slew of resources surrounding education during the pandemic. These include a <a href="https://equityschoolplus.jhu.edu/reopening-checklist/" target="_blank">checklist for administrators</a>, report on <a href="https://equityschoolplus.jhu.edu/ethics-of-reopening/" target="_blank">ethical considerations</a>, and a tracker of <a href="https://equityschoolplus.jhu.edu/reopening-policy-tracker/" target="_blank">state and local reopening plans</a>.</p>
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By Eoin Higgins
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