2030 target achievement review (for the years 2021 to 2030)

Under the Paris Agreement, Switzerland is committed internationally to reducing its greenhouse gas emissions by at least 50 per cent by 2030 compared to 1990, implemented by an average reduction of at least 35 per cent compared to 1990 over the years 2021–2030. The CO2 Act transposes this target into national law and defines the measures necessary for its implementation.

Switzerland’s greenhouse gas inventory provides the basis for defining and reviewing the reduction targets. The emissions of all sectors are relevant, including in particular the greenhouse gas balance of land use (vegetation, soils) over the entire area of Switzerland. In contrast, emissions from international aviation and navigation are not taken into account.

The annual target of a reduction of at least 50 per cent by 2030 compared to 1990 is consistent with the average target of a reduction of at least 35 per cent over the years 2021–2030. To check whether the target has been met, the data is not corrected for weather conditions. Consequently, the average target plays an important role, as it averages out annual fluctuations in emissions.

Overall target

The following graphic compares Switzerland’s total greenhouse gas emissions with the targets set for the years 2021–2030. Measures abroad are not yet taken into account here.

Development in Switzerland’s total greenhouse gas emissions in accordance with the CO2 Act and the Paris Agreement (including the greenhouse gas balance of land use, but excluding international aviation and navigation). The reduction in the most recent year compared to 1990 is also shown. The red line shows the target for 2030 (reduction of at least 50 per cent compared to 1990). The orange line shows the average target for the years 2021–2030 (reduction of at least 35 per cent compared to 1990). Measures abroad are not yet taken into account here, but are included in the target achievement review.

Domestic share

At least two thirds of the reductions needed to achieve the reduction targets must be achieved in Switzerland. The rest must be achieved through measures abroad. When calculating the domestic share, emissions from the buildings, transport, industry and other sectors are relevant, while the greenhouse gas balance of land use is not taken into account. By 2030, the relevant emissions must therefore be reduced by at least one third compared to 1990 (corresponds to two thirds of the 50 per cent reduction).

Reference values for individual sectors

The CO2 Ordinance defines reference values for individual sectors for the maximum permissible emissions in 2030 relative to the emissions in 1990:

Buildings: maximum 50 percent
Transport: maximum 75 percent
Industry: maximum 65 percent
Others: maximum 75 percent

Development in greenhouse gas emissions in the sectors as defined in the CO2 Ordinance. The respective reference values for 2030 are also shown.

Further information

Emissionen von Treibhausgasen nach CO2-Gesetz und Übereinkommen von Paris (Version April 2025) (PDF, 1 MB, 15.04.2025)In German, also available in French

Emissionsübersicht: Tabellen zum Bericht (Version April 2025) (XLSX, 346 kB, 15.04.2025)Tabellen zum Bericht «Emissionen von Treibhausgasen nach CO2-Gesetz und Übereinkommen von Paris» (in German, also available in French)

Evolution of Switzerland's greenhouse gas emissions since 1990 (April 2025) (XLSX, 441 kB, 15.04.2025)

Greenhouse gas inventory

Climate reporting

CO2 statistics