An environmental swap is a derivative contract that allows parties to exchange environmental credits, carbon allowances, or pollution permits without physical transfer of the underlying environmental assets. These swaps enable companies to manage environmental compliance costs and regulatory risks while providing financial institutions opportunities to facilitate environmental markets.

Environmental swaps support cap-and-trade systems and carbon markets by providing flexible trading mechanisms for emission allowances and renewable energy credits. These instruments help companies hedge environmental compliance costs while supporting global efforts to reduce greenhouse gas emissions. The market for environmental derivatives continues expanding with increasing climate regulation.

Real-world example: A utility company enters an environmental swap to exchange sulfur dioxide allowances for carbon credits, optimizing their environmental compliance portfolio while meeting regulatory requirements for different pollutants.