The reporting score under the Core data flow of the European Environment Agency decreased for Slovenia in recent years. In 2019, we reached 90%, which is also the EEA target for the average of all countries. In the following years, we reached around 83%. In 2021, 6 EEA countries achieved 100% reporting, 9 countries achieved more than 90%. The 11 most important data flows, supporting major environmental decisions, were evaluated.

In Slovenia, the number of educational institutions participating in the Eco-Schools program is constantly growing. In the school year 2022/23, a total of 732 institutions were involved in the program, which represents nearly 38% of all schools and kindergartens in Slovenia. Through environmental projects, over 130,000 Slovenian children and students, as well as 8,500 educators and teachers, were included in the environmental education system.

Environmental protection is important to the residents of the EU and Slovenia. The most significant environmental issues mentioned are growing amount of waste, air pollution, and climate change. A large majority of respondents agreed with statements expressing concern about various environmental problems and acknowledging their impact on their daily lives and health.

The estimated value of external transport costs in 2021 is approximately 2.4 billion euros, accounting for 4.6% of Slovenia's GDP. The majority (99%) of these costs are attributed to road traffic, while only 1% is attributed to rail traffic. Two-thirds of external costs arise from passenger traffic, with the remaining one-third from freight traffic. Notably, a third of the external costs of transport are associated with traffic accidents, followed by costs related to congestion (20%), climate change (18%), air pollution (16%), damage to habitats (7%), and noise (6%).

Air pollution is the most important environmental risk factor for human health, affecting an average of 400,000 premature deaths in the EU and costing Europeans an average of more than € 166 billion a year. In the case of the cities of Ljubljana and Maribor, external costs amount to almost EUR 271 million annually. Estimation of external costs of air pollution from transport is slightly decreasing.

Plans to improve air quality in Slovenia include a number of measures. It is crucial that the state ensures the financing of measures and thus the implementation of measures, and consequently the improvement of ambient air quality. In 2019, as much as EUR 15.56 million more investments were paid out than in 2014. In the period from 2014 to 2019, most investments were in wood biomass boilers, followed by investments in heat pumps.