 Also, debt-for-nature swaps have undergone thorough critique by skeptics; these criticisms may have contributed to the decline of the debt-for-nature financing mechanism.Debt-for-nature swaps produce only minor debt reductions and generate far less funding than the face value of the debt purchased in the secondary market.The amount of public debt relieved by debt-for-nature swaps, even in the countries that participate in swaps regularly, accounts for less than 1% of total external debt.