Voluntary action alone is not enough.

Are appeals to individual responsibility enough? Can we achieve the net-zero target in Switzerland if private individuals behave in a climate-friendly manner? In this study, we show that, realistically, individual responsibility can achieve at most 20% of the required reduction in greenhouse gas emissions.

The rest requires political measures. Possible options include incentive systems (such as CO₂ taxes on all products, CO₂ duties on imports, subsidies, etc.) and/or laws that encourage all actors to behave in a climate-friendly manner. Taxes or subsidies on products and services could, for example, be calculated in such a way that the most climate-friendly options are the most cost-effective for consumers/users.