This study investigates instruments that could generate revenue for international climate finance. Through a mixed-methods approach, including desk research and interviews with 23 experts from diverse professional backgrounds, the study evaluates four proposed levies: a Fossil Fuel Extraction Levy, a Levy on Windfall Fossil Fuel Profits, a Levy on Plastic Polymers, and a Levy on Jet Fuel.

This study aims to provide actionable recommendations to the European Commission for how to make progress on selected international climate finance instruments.