Particularly climate-friendly dishes are highlighted in the Studierendenwerk Bremen canteens with the KlimaTeller logo. The aim of the Germany-wide KlimaTeller project is to highlight particularly climate-friendly dishes in the canteens, thereby promoting conscious consumption decisions and, at best, further reducing greenhouse gas emissions in the area of communal catering.
Thanks to climate-friendly ingredients, a dish labeled as a KlimaTeller causes at least 50% less greenhouse gas emissions than a comparable average dish. A presentation of the probable greenhouse gas balance of all dishes is deliberately omitted due to the necessary use of imprecise approximate average and literature values. The project is funded by the Federal Ministry for Economic Affairs and Climate Protection as part of the National Climate Protection Initiative.
The Intergovernmental Panel on Climate Change (IPCC of the United Nations) has introduced the global warming potential to assess the effects of various greenhouse gases. This index compares the warming effect of a greenhouse gas over a defined period of time with that ofCO2. Methane, for example, has a 28-fold higher climate impact thanCO2, even though it remains in the atmosphere for a shorter period of time. Nitrous oxide even exceedsCO2 by a factor of almost 300 in its effect on the climate. Both gases originate mainly from agriculture, through the use of nitrogen fertilizers and livestock farming. In order to make the various greenhouse gases comparable, their emissions can be converted intoCO2 equivalents and summarized, labeled asCO2e.