In Metro Manila, 15-year-old Angela fainted on her way to school. Like a thousand others across the nation, her school was closed due to a severe heatwave. Angela is just one among countless people across Southeast Asia who bear the brunt of changing climate. Each year, over 460 million of them face at least one environmental hazard, while 210 million face three or more. This reveals a structural gap in how the health and well-being of adolescents are often overlooked. Without urgent, evidence-based investment, climate change will reverse valuable gains in adolescent health, education, and gender equity.
Background
The East Asia and the Pacific region is home to more than 1 billion children and adolescents. Southeast Asia falls under one of the world’s most climate-vulnerable regions. The Intergovernmental Panel on Climate Change (IPCC) has warned that the region will face extreme exposure to heatwaves, floods, vector-borne diseases, and sea-level rise over the next two decades.
April 2024 was when the region experienced one of its most extreme heatwaves. In Bangladesh, heatwaves forced all schools to close, which impacted 33 million children. Temperatures soared above 50°C in parts of the Philippines, Cambodia, and Thailand. Governments across these regions continue to struggle as they respond to the heatwave crisis. Such closures deprive students of essential services, such as school meals, menstrual hygiene products, and psychosocial support.
Compounding health risks for adolescents
Adolescents’ developing thermoregulatory systems make them uniquely vulnerable to the physiological impacts of extreme heat. Research has also found that prolonged exposure to temperatures above 35°C can lead to dehydration, heat exhaustion, and cardiovascular strain – outcomes that are severe in undernourished or anemic adolescents.
Besides rising temperatures and urban congestion, air pollution is another increasing public health risk. Adolescents are exposed to a high proportion of fine particulate matter (PM 2.5), which increases the rates of asthma, infections, and reduced lung capacity, especially in cities, such as Jakarta, Bangkok, and Manila.
Moreover, vector-borne diseases, such as dengue, malaria, and measles, also affect adolescents disproportionately. Rising temperatures expand mosquito breeding zones, which spread these diseases to new areas. A 2024 analysis by UNICEF on the “effects of climate change on child health and well-being” found that climate-sensitive disease outbreaks disrupted the education of more than 40,000,000 children annually.
Another barrier that adolescents struggle with is poor mental health, which remains overlooked and has a profound impact on adolescents. Climate-induced displacement, loss, and disruption are linked to rising rates of anxiety, depression, and Post Traumatic Stress Disorder (PTSD) among adolescents. A strong correlation has been confirmed between extreme weather exposure and adolescent psychological distress, particularly among girls and marginalized youth (PMC Pub Med Central).
Schools as frontlines of climate disruption
Climate crises directly impact educational systems. Schools in Thailand, the Philippines, and Cambodia closed due to unsafe conditions during the April 2024 heatwave. Students in regions like Sylhet miss up to eight weeks of education each year. The Guardian reported that classroom temperatures exceeded 40°C in Bangkok, which violates national safety thresholds for indoor environments.
School closures disrupted more than learning as adolescents were deprived of meals, vaccines, menstrual health support, and psychosocial care. A study finds that school closures affect adolescent girls disproportionately due to the limited menstrual hygiene infrastructure and gendered responsibilities during such crises. Despite their physical and social vulnerability to climate threats, adolescents are notably missing from national adaptation and health plans.
When schools are closed, adolescents, particularly girls, lose a lifeline. They suffer further disadvantages due to inadequate water, sanitation, and hygiene (WASH) infrastructure. Plan International’s report cited that floods or droughts increase the chances that menstruating girls will temporarily or permanently drop out of school. These setbacks increase the risk of early marriage, gender-based violence, and intergenerational poverty.
Structural gaps in policy and systems
Despite the growing burden of climate impacts on adolescents, policy frameworks remain adult-centric. Per the UNICEF report, only one-third of Southeast Asian countries explicitly address adolescent health or education in their nationally determined contributions (NDCs) or national adaptation plans.
Even when governments introduce programs for maternal and child health, they often underfund services for adolescent mental health, reproductive care, and disease prevention. This shows that health systems are misaligned and inaccessible, especially in rural and informal urban areas.
Education ministries also rarely integrate climate resilience into infrastructure or curricula. A UNESCO SEAMEO (Southeast Asian Ministers of Education Organization) 2023 audit found that fewer than 20% of public schools in ASEAN countries are built to withstand flooding, and fewer than 5% have heat-resilient classroom architecture.
Investing in resilience is good economics
Healthy, educated adolescents become productive adults who sustain growth, innovation, and stability. Every dollar invested in their climate resilience yields long-term social and financial dividends. Private capital, public programs, and youth innovation must converge around this goal. Companies that embed adolescent-health resilience into their ESG strategies, by supporting climate-proof infrastructure, mental-health tech, and inclusive education, will not only build reputational capital but also strengthen the markets they depend on.
The current climate crisis presents an opportunity for stakeholders to center adolescents in climate policies. National climate with age plans must include adolescent-specific health and education indicators, with age-specific monitoring. The following interventions show how adolescent needs can be operationalized across health, education, and climate systems.

- Climate-proof schools and health centers: Governments must prioritize resilient infrastructure, such as cooling systems, flood barriers, and solar-powered water systems, in urban and rural schools.
- Scale adolescent mental health and psychosocial support: Stakeholders should invest in training frontline workers to detect and address climate-induced stress in adolescents, especially in post-disaster zones.
- Provide gender-responsive WASH services: Every school and clinic must include private, functional menstrual hygiene management facilities, particularly in climate-affected districts.
- Support youth-led advocacy and innovation: Programs that fund adolescent participation in climate governance and solution-building should receive adequate support to yield higher accountability and innovation outcomes.
The business cost of inaction
Beyond being a humanitarian issue, the health toll of climate change is an economic one. When schools close, when adolescents fall ill, when communities relocate, productivity, innovation, and future labor supply all decline. The ILO estimates that heat stress could erase up to 5 percent of working hours annually in ASEAN economies by 2030.
Yet most corporate sustainability agendas still treat adolescent health as someone else’s responsibility. That must change. The private sector has both the means and the incentive to safeguard this generation – not through short-term philanthropy, but through long-term investment in resilience, innovation, and workforce well-being.
Private innovation filling public gaps
Public health systems in Southeast Asia remain under-resourced; few allocate more than 3 percent of GDP to healthcare, and even less to adolescent mental health or preventive care. Private innovation can help bridge, some, if not all, of these gaps.
Across Asia, a surge of digital and mental health enterprises is showing what scalable, affordable solutions look like. In India, more than 400 private mental-health startups now offer AI-enabled chatbots, teletherapy, and wearable devices that extend care to millions. Similar models can be adapted for adolescents in climate-vulnerable communities, especially for providing low-bandwidth, multilingual access to psychosocial support after disasters or heat events.
In the Philippines and Indonesia, health-tech startups are piloting mobile screening tools for stress and dehydration among students, linking them to digital counselors or clinics. Corporate Employee Assistance Programs are also expanding to cover adolescents in their employees’ families, embedding continuity of care across the household. These approaches reinforce how private enterprises can extend public health delivery without duplicating it — reaching more people, faster, and often at lower cost.
What next?
More than demographic statistics, the 243 million adolescents in Southeast Asia are a resilient generation at risk. Although climate change has made their vulnerabilities visible, it has also underscored their potential as change agents. The current policy vacuum is a critical failing, but it can be reversed with immediate, inclusive, and strategic investment.
Adolescents must be repositioned at the center of Southeast Asia’s climate resilience agenda. The private sector holds a decisive role in this equation – by financing innovation, scaling digital health, and building climate-resilient infrastructure that gives every adolescent a fair chance at the future. In a region where the next generation will inherit both the economic promise and the climate burden, investing in their health is the smartest business decision of all.


