Thanks to improvements in the energy efficiency of buildings, the increasing use of renewable energies for heating and the increased use of biofuels, CO2 emissions from fuels in Switzerland fell last year. +Get the most important news from Switzerland in your inbox In particular, carbon dioxide emissions from heating oil and gas fell by 4% compared to 2023, while emissions from petrol and diesel fell only slightly (2%), according to the Federal Office for the Environment (FOEN). + Why Switzerland's carbon footprint is bigger than you think With its annual statistics, the FOEN monitors the development of CO2 emissions from fuels and combustibles. In order to be able to make a comparison over the years, the influence of winter temperatures on the use of heating oil and gas is compensated for in these statistics by means of a so-called climate correction. Net of this factor, the 4% decrease for fuels in 2024 corresponds to an overall reduction of 44% compared to 1990. This decrease is ...