The impact of low-carbon consumption options on carbon footprints in the Nordic region

Changes in personal consumption play an important role in the reduction of greenhouse gases (GHGs) to stay within the 1.5-degree warming carbon footprint budget. Affluent countries have high carbon footprints from a consumptive perspective and therefore have a high potential to reduce emissions from personal consumption. To study this potential, we look at the consumption-based carbon footprints of respondents from a carbon footprint calculator survey from the Nordic countries to compare the carbon footprints of those who participated in selected low-carbon consumption options to those that did not. The total sample size of the survey is 8,000 households. We analysed seven low-carbon consumption options within the domains of diet, transportation and housing energy. An input-output based hybrid assessment model was used to calculate the consumption-based carbon footprints. In addition to analysing these options separately, we also analysed them in combination. The lowest carbon footprints were associated with those respondents who did not own a car or had a vegan or vegetarian diet, and the largest difference in emissions was associated with not flying and not owning a car. Rebound effects for the consumption options were largely limited and were mostly not significant. Participation rates in the low-carbon consumption options were generally low. These results underscore the need for higher rates of adopting multiple low-carbon consumption options and can inform policy on which consumption options could be the most impactful.