580m children face 20+ extra heat-stress days yearly

Climate change is delivering a material blow to child welfare that most organisations still aren't factoring into their climate-risk assessments. More than 580 million children under 10 years old – over 40% of that age group globally – are already experiencing at least 20 additional "heat-stress days" every year compared to pre-industrial baselines. These aren't theoretical projections. They're happening now.

Heat-stress days are measured by the combination of temperature and humidity that makes outdoor activity dangerous for young children, whose thermoregulation is still developing. The exposure is uneven: children in low-income regions face disproportionate risk because they lack access to air conditioning, reliable electricity, or climate-controlled schools and healthcare facilities.

For organisations with supply chains, operations, or workforce presence in affected regions – particularly South Asia, sub-Saharan Africa, and parts of Latin America – this translates to direct business exposure: reduced school attendance, lower worker productivity, increased healthcare costs, and elevated risk of malnutrition. Yet most corporate climate strategies treat this as a peripheral social issue rather than a material operational risk.

The data matters for ESG reporting too. Scope 3 emissions accounting typically excludes downstream climate impacts on vulnerable populations. Double-materiality frameworks now require organisations to disclose how climate change harms their stakeholders, not just shareholder value. A child unable to attend school because of heat stress is a material risk signal most companies aren't yet measuring or disclosing.

The question: which sectors will begin pricing child climate vulnerability into procurement decisions, workforce planning, and supply-chain resilience strategies?

Climate change exposes 580 million children to 20 extra ‘heat-stress days’ every year

Report This Content