Frequency of groundwater drought is increasing in recent decades in alluvial aquifers. 8 out of 10 years with highest intensity of groundwater drought in period 1981-2024 occurred after year 2000. Groundwater droughts with higher intensity is characteristic for winter while milder groundwater droughts mostly occur at autumn. Groundwater drought intensity is also increasing seasonally with time between June and September when groundwater use is pronounced.

In 2022, agriculture accounted for 97.5% of total ammonia emissions. From 1990 to 2023, ammonia emissions in Slovenian agriculture decreased by 31.8% and by 15.6% since 2005. Slovenian agriculture is achieving the overall emissions target set out in the NEC Directive (a gradual reduction of at least 15% by 2030 compared to 2005).

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.

The ownership of passenger cars, closely linked to their usage, has been steadily increasing in Slovenia for a long time – it has doubled since the country's independence in 1991. Between 2008 and 2015, car ownership grew more slowly due to the economic recession, but since 2015, the growth has accelerated again. The exceptions were the pandemic years of 2020 and 2021. Slovenia's motorization rate (measured in the number of personal cars per thousand inhabitants) exceeds the EU average and is higher than that of many economically more developed EU countries.

Greenhouse gas (GHG) emissions from transport in Slovenia almost tripled between 1986 and 2022. In the EU, GHG emissions from transport also exceed economic growth on average, but significantly less than in Slovenia; in the period 1990-2022, they increased by a quarter 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 majority share of traffic emissions in Slovenia in total GHG emissions and insufficiently effective measures to reduce them hinder Slovenia's efforts to achieve the accepted obligations.