What does it take to create more sustainable school facilities? In the third part to this series, Carter Hyde and Hannah Nguyen discuss some of the new developments in facilities and facilities management that schools across the country have implemented to conserve energy, cut costs, and support students’ learning and wellbeing. The first post explored the negative impact that climate change and related disruptions have on students, and the second post focused on how schools are making busing and other aspects of school transportation more sustainable.
This series is a part of IEN’s ongoing coverage of what is and is not changing in schools and education following the pandemic school closures. For more on the series, see “What can change in schools after the pandemic?” For examples of micro-innovations in other areas, see Access to food and school meals in the US and around the world; Innovations in providing children with food and nutrition; Building Student Relationships Post-Pandemic in School and Beyond; Scanning the Post-COVID Challenges and Possibilities for Access to Colleges and Careers in the US ; New Pathways into Higher Education and the Working World? (Part 2); Tutoring takes off and Predictable challenges and possibilities for effective tutoring at scale.
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Environmental changes are contributing to disasters, crises, and day-to-day conditions that disrupt schooling, increase costs, and undermine students’ health and learning. Combatting these problems is profoundly complex, often requiring difficult trade-offs. Efforts to improve student health and learning environments may conflict with long-term sustainability goals and cost-effectiveness. These tradeoffs force school administrators to weigh the benefits of expensive structural upgrades against smaller, more affordable interventions. Despite the challenges, schools in the US and around the world are taking innovative steps that range from major infrastructure upgrades to homegrown, creative adjustments made by teachers in their classrooms.

Major Infrastructure Upgrades and Renewable Energy
After salaries, energy represents a critical area for both reducing costs and addressing sustainability. In the US, energy bills make up the second highest cost for school districts, amounting to roughly 8 billion dollars per year. To address these significant expenses, many institutions are moving beyond reactive budgeting and toward strategic roadmaps that help schools set sustainability goals that are aligned with national sustainability targets. Schools can use these roadmaps to help reduce the schools’ energy and water consumption, waste, and greenhouse gas emissions.
In the US, energy bills make up the second highest cost for school districts, amounting to roughly 8 billion dollars per year.
In addition to strategic budgeting, some schools are turning to high-impact technology to reduce energy costs and to promote sustainable practices. For instance, some schools are now putting in place geothermal wells because they offer a particularly sustainable way to heat and cool schools without burning fossil fuels. At the same time, some schools are turning to solar energy so that they can develop their own sources of energy. Though a costly up-front investment, solar panels can help reduce the electrification gap by providing a sustainable way to power schools that reduces costs over time and contributes to better air quality.

Improving HVAC Systems and the Building “Envelope”
Beyond energy sources, improvements to the school’s physical “envelope”—the walls, windows, and climate systems—can support student performance. Upgrading old HVAC systems, in particular, provides a way to cool classrooms and create better learning conditions at the some time. As one review of survey data from New York State schools showed, improving HVAC systems contributed to a 2% increase in attendance and a 3% increase in math scores over multiple years. Among other benefits, HVAC improvements can produce better air flow, which reduces the spread of disease and helps students focus. Improving air filtration through the use of air purifiers and portable air cleaners, can also help improve cognition and mitigate illness-related absences.
At the same time, air conditioning alone is not always a sustainable solution, as these systems can expel hot air outdoors and contribute to global warming. As architect Francis Kere explains, “energy-intensive air conditioning, which expels hot air outdoors, contribute to global warming, which then fuels demand for more air conditioning.” Instead, Kere recommends using passive cooling techniques, such as overhanging roofs to improve air circulation and generate cross-ventilation.

Schools can also make improvements in the outdoor environment to address sustainability. For instance, planting trees on asphalt playgrounds can reduce temperatures through shading, and painting roofs white, adding vegetation of false ceilings, and creating more green spaces can reduce the “heat island” effect.
Balancing Lighting and Temperature
Lighting represents another area where schools need to consider potentially conflicting benefits. In a 2020 review of 130 studies, lighting was found to be one of the environmental factors that had the biggest impact on students’ learning and wellbeing. Maximizing the amount of natural light in classrooms, in particular, has been shown to have a number of benefits including reducing eye strain, boosting mood, and improving cognition. Although artificial lighting may lead to lower motivation and eye strain, research reviews highlight that students in classrooms with more natural light showed higher productivity, engagement, and attention level. Despite these benefits, some classrooms may still suffer from poor lighting or rely too heavily on artificial sources. This problem is exacerbated by the fact that, in an effort to reduce energy consumption and costs, many schools have implemented LED lighting in classrooms.
Maximizing the amount of natural light in classrooms, in particular, has been shown to have a number of benefits, including reducing eye strain, boosting mood, and improving cognition.
In addition to finding a balance that maximizes the benefits of natural lighting with the costs, schools have to take into account the fact that both too much direct sunlight and too little light can negatively impact student engagement and impair test scores. Furthermore, schools have to take into account mitigating factors, including structural limitations that prevent some classrooms from relying on daylight, as well as the increases in classroom temperature and energy costs that come with larger windows. One way to deal with these challenges is to use temperature-treated or double-paned glass to provide light while keeping the heat out. The use of window shades may also be useful in eliminating glare.
Teachers’ Role in Sustainability
Whether or not schools have the resources for major structural changes or sustainability upgrades, teachers play a key role in striking the right balance between lighting and temperature and supporting both sustainability and an optimal learning environment. For instance, teachers have demonstrated a host of creative ways to combat heat and to improve the environment including using fans, creating window art to reduce glare, and turning off heat-generating electronics. In some cases, the simplest solutions may be the best solutions, as teachers in schools located in temperate regions with good air quality can open windows to allow for natural air flow.
Improving Facilities in “Old” Buildings
Along with so many natural disasters and rising temperatures, many communities face a long-standing demand to improve aging or inadequate school buildings. One of the most recent assessments of school infrastructure in the US shows that it would cost almost 200 billion dollars to bring all K-12 school buildings into good overall condition and the American Society of Civil Engineers gives the condition of America’s 100,000 public school buildings an overall grade of D+. Estimates suggest it would take as much as 85 billion dollars a year to make the needed improvements. On top of that, the costs of deferred maintenance continue to compound with every one million dollars worth of needed improvements deferred in one year leading to $1.08 – 1.12 million in costs the following year.
In the US, the burden and responsibility for addressing this problem falls on individual school districts and communities, but many lack the resources to pay for the significant upfront costs of building new facilities. Some districts have tried to mitigate these costs – and the sustainability problems that new construction often produces – by repurposing older buildings. For instance, struggling malls have opened the doors to charter schools as tenants to use the empty spaces. One charter school in South Carolina opened up in a former JC Penny Store. In Massachusetts, instead of building a new high school, one district opted to co-locate a school in the community’s senior center. center down the road.

For more information regarding infrastructure and sustainability, see:
Officials promised all NYC classrooms would get air conditioning. 1 in 5 still lack it. (ChalkBeat)
Is your NYC school using the air purifiers that were distributed during COVID? (ChalkBeat) Why improving air quality in schools would minimize the threat of bird flu spread (ChalkBeat) California’s K-12 schools often lack sufficient shade and natural surfaces (UCLA Luskin School of Public Affairs)
Measuring schoolyard heat one step at a time (UC Davis College of Agricultural and Environmental Sciences)
Alabama is Bringing Forests Into Schoolyards (Governing)
What Works and For Whom? Effectiveness and Efficiency of School CApital Investments Across the U.S. (Biasi, Lafortune, & Schonholzer)
‘A place for kids to play and a place to store water’: the stormwater capture zone that is also a playground (The Guardian)
NYC to install solar panels at 72 public schools by year’s end, helping kids learn about clean energy (Daily News)
What Will Districts Do With All Those Empty School Buildings? Some Look to Fill Them With Younger Kids (EdSurge)





















