Debt Burdens Stifle Climate Spending in Vulnerable Nations, Report Finds
A new ActionAid report reveals that 65 highly climate-vulnerable countries will spend about 65 percent of government revenue on debt repayment in 2026, while allocating only a tiny fraction to climate adaptation. Over 93 percent of these nations are already in debt crisis or at significant risk, leaving them with little money for climate, health, and education. The report argues that unfair debt terms and loan-based climate finance are worsening the cycle of crisis.
The report highlights a structural imbalance: two-thirds of international climate finance from wealthy nations arrives as loans rather than grants, adding new repayment obligations to countries already stretched thin. Currency dynamics worsen the squeeze, since Global South nations must repay external debt in stronger foreign currencies, and climate disasters can trigger capital withdrawal that depreciates local currencies, making repayments costlier.
Zambia illustrates the pattern, with drought affecting over 9 million people while the government allocates 60 percent of its budget to debt service and just 0.32 percent to climate adaptation. The report also notes that some countries turn to environmentally harmful exports, including fossil fuels, simply to earn the foreign currency needed to satisfy creditors.
This dynamic could trap vulnerable nations in a self-reinforcing cycle where climate shocks deepen debt, and debt forces cuts to the very adaptation measures that might reduce future disaster costs. Citizens in these countries may face deteriorating public services, food insecurity, and weakened disaster response capacity. The report's findings could also pressure international financial institutions and wealthy donor nations to reconsider loan-based climate finance models, potentially reshaping how global climate funding is structured.