Khairul Alam — Climate-driven extreme heat is dealing a dual blow to Bangladesh’s population by drastically reducing working hours while simultaneously driving up medical expenses, according to a report published on July 19, 2026.
The study warns that the country’s vast informal labor market, high out-of-pocket healthcare expenses, and minimal social safety nets exacerbate the financial strain caused by surging temperatures.
The findings were detailed in a report titled “Heat, Health and the Increasing Costs of Living: A Call for Action,” released by the German-based research institute Adelphi Global.
Analyzing eight nations—Bangladesh, Brazil, France, India, Indonesia, Italy, Nigeria, and South Africa—the research highlights Bangladesh as one of the most vulnerable countries to climate-induced economic disruptions.
Mounting Workday Losses in Key Sectors
The report projects that by 2030, workers in Bangladesh’s agriculture and construction sectors could lose an average of 23.75 working days annually due to heat stress.
Currently, the rate of lost working hours in these two sectors stands at 6.28 percent, but it is forecast to rise to 9.58 percent by 2030.
Across all economic sectors, annual working-hour losses are expected to increase from 4.24 percent to 4.84 percent over the same period.
Because informal workers lack paid sick leave, health insurance, and formal income guarantees, any reduction in work hours directly diminishes their household earnings.
Rising Healthcare Costs Strain Households
Compounding the drop in income is a steep rise in medical expenses. In 2023, households in Bangladesh directly bore 79.3 percent of total health expenditures—one of the highest proportions among the surveyed nations.
Furthermore, annual per capita out-of-pocket healthcare spending surged by more than 830 percent between 2000 and 2023. Heat-related illnesses threaten to exacerbate this financial burden.
Between 2020 and 2039, most regions of Bangladesh are projected to face high to extremely high humidity-driven heat risks, with temperatures exceeding $30^\circ\text{C}$ for 183 to 239 days each year.
During severe heatwaves, productivity losses in specific industries could reach as high as 50 percent.
Gender vulnerabilities are also evident: almost all women employed in Bangladesh’s agricultural sector operate informally.
Informal employment is similarly dominant in construction, leaving workers exposed to direct wage losses whenever high temperatures prevent labor.
Adelphi Global estimates that in 2024 alone, potential income losses resulting from reduced labor hours and diminished productivity due to extreme heat reached approximately $24 billion—representing nearly 5 percent of Bangladesh’s gross domestic product (GDP).
Frequent power grid disruptions during heatwaves further aggravate exposure to extreme temperatures in homes, factories, and outdoor workplaces.
Policy Recommendations
To mitigate these cascading economic risks, the report recommends an integrated policy framework connecting climate adaptation, public health, and labor protection. Key actions include:
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Strengthening public health systems to lower household reliance on out-of-pocket medical spending.
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Extending social safety nets and formal labor rights to heat-exposed informal workers.
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Incorporating heat-health vulnerabilities directly into National Adaptation Plans.
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Mobilizing climate finance to safeguard health and labor security.
As heatwaves become more frequent, addressing climate risks alongside health and labor reforms remains critical to protecting household livelihoods across Bangladesh.