Globe From Home · 2026

Schools are the most
exposed and least prepared
climate infrastructure on Earth

172M
Students disrupted by climate in 2024 alone
1% per 1°F
Learning lost per degree warmer (without AC)
0.03%
Of global climate finance reaches education
Case for action

Extreme heat is already endangering children's lives.
It is eroding their ability to learn.
And it is pushing the most vulnerable—especially girls—out of school.

Every number below comes from peer-reviewed research and WHO/UN data. The evidence is unequivocal: heat impacts health first, then learning, and ultimately access to education—disproportionately affecting girls.

1% per 1°F — learning erased
Each 1°F hotter school year reduces that year's learning by 1% — and schools without air conditioning absorb the full impact. Measured from 10 million PSAT results across the US. Not a model. Real data. When cumulative school-year temperatures rise, math scores drop proportionally, with extreme heat being particularly damaging.
Heat kills learning — not just testing
Heat operates through the learning process itself, not exam-day conditions. Weekend and summer heat have zero effect. Only school-day heat matters — ruling out every confounding explanation. The curriculum literally slips on hot days. Cognitive performance drops 2.7% per day above 27°C, compounding with each consecutive hot day.
Nature Human Behaviour, 2021 · MIT CEEPR Working Paper, 2022
New angle
The damage begins the night before — and girls suffer it most
Each 1°C rise in nighttime temperature increases insufficient sleep by 0.5%. Memory consolidation — how learning becomes permanent — happens during REM sleep. A groundbreaking 2025 HERA analysis of 100 cities over 30 years found nighttime temperatures rising at up to 10× faster than daytime highs in some cities, with mortality risk on hot nights up to 50% higher than on cool ones. Girls are specifically named as the most exposed: gender norms and the threat of violence prevent them from sleeping with windows open or outside, making thermal recovery impossible. Children sleeping in hot homes arrive with the previous day's learning incompletely processed — before a single lesson has been taught.
New angle
Schools in economic disadvantage bear the full weight
A 2026 panel study of 122 developing countries found extreme heat significantly reduces net secondary school enrollment — and the negative effects are more pronounced for girls. Low-income urban areas are 6°C hotter than affluent neighbourhoods in the same city. Declining agricultural income — a key pathway through which heat hits families — forces children (especially girls) out of school first. Heat is not a universal disaster. It falls hardest on the most disadvantaged. And yet just 0.03% of global climate finance reaches education — the communities bearing the greatest burden receive the least support.
New angle
24–30% lifetime earnings penalty — compounding across 242 million students
Each year of schooling raises lifetime earnings 8–10% (World Bank). A child losing 0.3 equivalent years per hot school year, across 10 school years, accrues a 24–30% lifetime earnings deficit. Heat already costs 2.4% of global working hours annually. The children in school now will enter that workforce in the 2040s, already carrying a heat-induced cognitive deficit.
Gender justice — the dimension nobody in this space is naming
Heat pushes girls out of school first.
The data on this is now unambiguous.
Dropout risk
Girls leave when school closes — and rarely return
UNICEF (2025) explicitly states: "Girls are often disproportionately affected, facing increased risks of dropping out of school and gender-based violence during and after disasters." Heatwaves were the #1 climate hazard closing schools in 2024. In Kenya, drought forced families to "sacrifice education, especially that of girls." In South Sudan, a single March 2024 heatwave closed all schools nationwide, affecting 2.2 million students — and UNICEF confirms girls face heightened dropout and GBV risk after every such closure. A 2026 Springer/Climatic Change study across 122 developing countries confirms heat reduces secondary enrollment significantly more for girls than boys.
School as protection
Keeping girls in school is what protects them from everything else
A Kenya study (BMC Public Health, 2022) found girls experiencing school closures had 3× the risk of school dropout and 2× the risk of pregnancy compared to peers whose schools stayed open. During Sierra Leone's Ebola school closures, teenage pregnancy rates doubled and girls' secondary schooling dropped from 1.8 to 0.9 years. Extended heat closures increase the likelihood of child marriage, transactional sex, and early pregnancy — all of which make return to school nearly impossible. School being open and bearable is the intervention. Everything GFH builds serves this.
Economic burden
260% more heat-related losses — women vs men
The Arsht-Rock "Scorching Divide" report (Atlantic Council) found that when unpaid domestic labour is included — the burden of which falls disproportionately on women and girls — heat-related economic losses for women are 260% higher than for men. Heat forces girls home to care for sick relatives, compounding their own learning loss with invisible domestic labour. Girls pulled from school also enter the informal sector — the most heat-exposed, least-protected form of labour — with no route back. By 2050, extreme heat could claim 204,000 women's lives annually across just India, Nigeria and the US.
WASH barrier
No water + 38°C = girls stay home
42% of schools in low- and middle-income countries lack basic water services (WHO/UNICEF JMP 2023). In extreme heat, this is not a hygiene inconvenience — it is a direct barrier to attendance. Girls managing menstruation without clean water and private facilities in 38°C+ heat routinely stay home. Heat resilience programmes that do not address water access are solving half the problem. Our platform's hydration infrastructure and water bell system directly targets this gap.
Return on investment
25% earnings uplift per year of girls' secondary school
An additional year of secondary education for a girl raises her future earnings by 25% — significantly higher than the already-strong 8–10% average return for all children (World Bank 2022). Heat-driven dropout concentrates its economic destruction on the highest-return educational investment available to any government or funder. Maternal complications are the leading cause of death for girls aged 15–19 globally — and girls who stay in school are significantly less likely to face early pregnancy. Protecting girls in school during heat events is among the highest-ROI climate adaptation interventions that exist.
The framing gap: Every climate education and school resilience programme treats heat as a universal problem. It is not. For girls, school closure caused by heat is not just an educational disruption — it is the trigger for a cascade of harms: early marriage, pregnancy, GBV, informal sector labour, lost lifetime earnings, and higher maternal mortality. A UN study (April 2025) found the climate crisis is driving a surge in gender-based violence directly linked to heat and displacement. Keeping school open, safe, and bearable is the single most effective intervention available — and it's what GFH builds. Sources: Arsht-Rock Scorching Divide · HERA When Nights Turn Deadly 2025 · BMC Kenya school closure study

The system is broken at every level simultaneously

Policy: Only 21% of countries assess climate risk in schools (CDRI 2025). Heat action plans — where they exist — are generic city-wide documents giving every school identical advice.

Institutions: Only 20% of teachers feel confident explaining climate action to students (CDRI 2025). The professionals spending 6 hours a day with children are neither trained nor equipped.

Technology: UHeat maps heat at city scale. SEEDS identifies vulnerable buildings by satellite. CDRI publishes a paper framework. None operates at school level, integrates live data, and generates personalised action plans. That integration layer does not exist. Until now.