In Slovenia and in other European countries the proportion of vehicle fleet that comply with the latest and most stringent emission standards increased sharply in period 2011-2020. Penetration of new technology is highest for the diesel cars.

Greenhouse gas (GHG) emissions from transport in Slovenia almost tripled between 1986 and 2019. In the EU, GHG emissions from transport also exceed economic growth on average, but significantly less than in Slovenia; in the period 1990-2019, they increased by 23.6% in the EU-28. The main source of GHG is mostly road transport, which contributes as much as 99% of all GHG emissions from transport.

The volume of passenger transport demand has been increasing in Slovenia for several decades. Above all the volume of two most unsustainable modes – passenger cars and air transport (especially after 2002). The growth stopped after the economic recession in 2008 but intensified again after 2014. In 2020 and 2021 the pandemics caused another, steep decline. Trend of the public transport modes has been declining for decades, especially the proportion of intercity bus services.

In the first decade of this century, Slovenia focused the majority of its investments in the road network, especially on the construction of the motorway. Investments in railways have been neglected and therefore, uncompetitive with the road transport. After 2011, this trend is changing, although the total volume of investments in transport infrastructure has decreased significantly since 2008. Since 2010, Slovenia has been allocating a larger share of funds to the modernization and upgrading of the railway network.

The value of agricultural output in Slovenia fluctuates in the period 1995–2020, which can be a consequence of fluctuation of changes in prices of agricultural products, changes in the volume of agricultural production or changes in both. In last couple of years, the key factor is the physical volume of production, which fluctuates markedly due to changing natural (weather) conditions. Similarly, the value of agricultural output, calculated per capita, fluctuates in the analyzed period, with long-term downward trend.