Most of the Nordic countries were successful in reducing industrial emissions during the 1990-2019 period. The Fuel combustion in energy industries sector made a leap forward in terms of emission abatement in several of the countries. In Denmark, for example, this sector reduced greenhouse gas emissions by 17.5 MtCO2eq between 1990 and 2019. That represents a 67% reduction, which was achieved mainly as result of a large increase in wind power generation, which replaced carbon-intensive coal and gas power (IEA 2017). Progress in Finland and Sweden was also substantial in this sector (-1.7 and - 2.7 MtCO2eq, equivalent to a 14% and a 17% decrease, respectively). Thanks to the abundance of renewable energy sources – mostly hydro and geothermal –, emissions in the Fuel combustion in energy industries sector are negligible in Iceland, where house heating was converted almost entirely from oil to geothermal during the 1970s and 1980s. In Norway, however, emissions in this sector increased by 7.8 MtCO2eq (a 108% rise) due to the toll of oil production. Upstream oil and gas activities, comprising exploration, production, transportation, processing, and vessel loading, account for a significant proportion of those emissions (Hall 2020).
Emissions in the Fuel combustion in manufacturing industries and construction sector also declined over the 1990-2019 period in all of the Nordic countries. Emission cuts ranged from a 76% decrease in Iceland to a 15% reduction in Norway. In Iceland, the reduction was driven by the switch from oil to electricity as a power source in manufacturing industries, particularly at fish meal plants. The largest absolute reduction was in Finland (-6.8 MtCO2eq, a 51% decrease). Here, the key factors were the increased use of biofuels in the forest industry and outsourcing of power plants from industry to the energy sector (Statistics Finland 2022). In Sweden, emissions from manufacturing industries and construction fell by 37% between 1990 and 2019 (-4.0 MtCO2eq), as fossil fuels were replaced by electricity or biomass (Ministry of Environment 2019).
Progress in the Industrial processes and product use sector was mixed. During the 1990-2019 period, Denmark and Norway managed to reduce their emissions in this sector by 14% and 38%, respectively, while emissions in Finland (2%) and Sweden (6%) did not undergo substantial change. In Iceland, greenhouse gas emissions from industrial processes increased by 122% between 1990 and 2019, particularly during the years 2006 to 2008, when emissions from industrial processes doubled. The metal industry – mainly aluminium smelting and ferroalloys production – accounts for the largest proportion of those emissions. In a global context, however, the absolute increase in Icelandic industrial processing emissions is modest (1.1 MtCO2eq). Moreover, as stressed by Weber and Søyland (2020), the low-carbon energy inputs used by Iceland’s industry offset the more carbon-intensive processes that would occur if these processes were performed elsewhere in the world. That is because all primary energy used to produce electricity comes from renewable sources, in particular hydro and geothermal (see Section 2.4.2).
Emissions from fuel combustion in commercial, institutional, and residential buildings account for the largest share of the emissions included in the Other fuel combustion sectors. These emissions lessened significantly in all of the Nordic countries thanks to the increased use of district and electric heating in residential, commercial, and public buildings (Statistics Finland 2022). In Sweden, for instance, oil-fired combustion furnaces used for heating purposes in the residential sector have been replaced on a massive scale by district heating and electric heat pumps (Ministry of Environment 2019). Emission cuts in this sector range from a 78% decrease in Sweden (-8.7 MtCO2eq) to a 35% reduction in Iceland (-0.3 MtCO2eq), thanks to continued development of geothermal heating.
Looking at the development of greenhouse gas emissions in the 1990-2019 period, agriculture is the sector where the attainments of the countries are more similar. In Denmark, emissions declined by 13% (-1.8 MtCO2eq). In Iceland, Finland and Sweden, emission reductions in this sector were in the environment of 11% and 12%, while in Norway emissions in the primary sector declined by 6%.
Progress in transport, including international aviation and navigation, has been limited and unevenly distributed. In a Nordic comparison, only Sweden (-3.1 MtCO2eq) and Finland (-0.8 MtCO2eq) managed to reduce greenhouse gas emissions in the transport sector between 1990 and 2019 (-15% and 7%, respectively). In Iceland, the increase of emissions in the transport sector was as high as 71% (0.4 MtCO2eq), driven by the boom in tourism that started around the year 2013. In Denmark, domestic emissions in 2019 were 22% higher than in 1990 (2.3 MtCO2eq), while in Norway the increase during this period was 27% (2.7 MtCO2eq). The international transport memo items also show a contrasting performance. As long-distance tourism became more popular during the time period considered here, the emissions from international aviation increased substantially in all of the Nordic countries, ranging from a 336% rise in Iceland (0.7 MtCO2eq) to a 77% increase in Denmark (1.4 MtCO2eq). In Iceland emissions from international aviation increased particularly rapidly during the 1990-2020 period. That development was driven by tourism. In particular, international tourist visits to Iceland have increased considerably during the last two decades, resulting in more flights to and from the country. After a single unbridled period of growth during the first two decades of 21st century, the influx of international tourists to Iceland came to a full stop due to the COVID-19 pandemic (Norlén et al. 2022, Ch. 10). That resulted in a sharp decline of emissions in this sector in 2020, while the 2021 figures already anticipated a post-pandemic boom. Emissions from international navigation decreased in Denmark, Finland, and Norway (by 26%, 43% and 53%, respectively), but increased in Iceland (632%) and Sweden (196%).
Emissions in Other fuel combustion sectors that are ‘not elsewhere classifiable’ (n.e.c.) represent a very small proportion of total emissions in all countries, with Finland being the only exception. Here, the subcategory covers emissions from non-specified consumption of fuels and statistical corrections of fuel consumption, including fuels for military use and emissions from pipeline transport. These emissions decreased by 31% compared to 1990 levels (Statistics Finland 2022).
In order to reach the ambitious climate goals at national and European levels that were described in previous chapters, transport is one of the main sectors where emissions need to be reduced. Looking across the Nordic countries, this sector continues to account for a large share of emissions, meaning that progress in abating emissions would have a large impact. This sector also falls under the Effort Sharing Regulation (ESR) and is therefore a policy area where the national governments of the Nordic countries have greater influence on how to achieve European climate targets. In later sections of this report, we will therefore focus, among other things, on this sector and analyse the impacts of climate policies aimed at abating emissions originating from transport.
2.4.2. Energy consumption and energy mixes
The emissions trajectories described in the previous section are closely related to those illustrated in Figure 5, which shows the evolution of primary energy consumption in each country, measured in terawatt hours (TWh). According to the trends shown in the various panels, during the 1990-2021 period, Denmark, Finland and Sweden managed to curb their primary energy consumption in absolute terms by 37.2 TWh, 19.6 TWh, and 14.9 TWh, respectively. In relative terms, the reduction was particularly marked in Denmark (-19%), compared to Sweden (-11%) and Finland (-6%). By contrast, total primary energy consumption increased in Norway (68.1 TWh; up 14%) and, particularly, in Iceland, driven mainly by the increase in aluminium production (28.2 TWh; up 133%).