Slovenia has been facing the problem of growing road traffic and greenhouse gas emissions resulting from it with data published by the Statistical Office ahead of the European Mobility Week showing emissions from that source going up by a quarter since 2008.

In 2022 road traffic produced 5.3 million tonnes of CO2 emissions or 42% of all annual CO2 emissions. Cars accounted for 52% and lorries and buses for 48% of road traffic emissions.

Greenhouse gas emissions in road traffic increased by 25% from 2008 to 2022, while the total CO2 emissions decreased by 24% during the same period. Road traffic also accounted for 39% of all nitrous oxide emissions in 2022.

About 1.2 million cars were registered in Slovenia at the end of 2023, 15% more than a decade earlier. Most were diesel cars (49%) and 46% were running on petrol.

The number of diesel cars went up by 35% in ten years, while the number of gasoline cars fell by 8%.

The share of hybrid cars and cars running on alternate fuels went up from 1% to 5% in the past decade.

Cars registered in Slovenia drove a total of some 17.5 billion kilometres last year, 61% of which was made by diesel cars and 33% by gasoline cars.

Slovenian cars were on average 11.1 years old last year. Only 10% were less than three years old.

The car renewal rate, which is the share of newly registered cars per 100 registered cars, increased slightly last year to 3.9 but remained well below the all-time high of 6.5 in 2018.

The renewal rate was the lowest in the western Goriška region (2.1), where the cars were on average 12.9 years old. It was the highest in central Slovenia (6.1), where the average car age was 10.3 years.