Pricing carbon Published: 23 September 2020 Both in Germany and internationally, the debate on the pricing of greenhouse gas emissions is experiencing a renaissance. However, an enlightened and realistic discussion of ways and means is needed so that CO2 pricing instruments can play a stronger role in climate policy. In this study, climate and energy expert Felix Chr. Matthes of the Öko-Institut examines the relevant elements of a CO2 pricing strategy. He gives an overview of design criteria and mechanisms of action.