The Happy Planet Index (HPI) ranks countries based on how effectively they provide their citizens with the conditions to live long and happy lives without excessive depletion of natural resources. Slovenia ranked 53rd in the world according to the HPI in 2019 (out of 152 countries included in the calculation) and 12th among the EU-27 countries and the United Kingdom. Despite an increase in per capita ecological footprint in Slovenia between 2016 and 2019, the HPI value has increased from 44.5 to 47.9. This is due to a slightly longer life expectancy and higher life satisfaction.

In 2021, the levels of benzo(a)pyrene at all urban monitoring sites reached the target value. Annual trends of benzo(a)pyrene levels show that the highest levels are measured during the heating season. In summer, levels are significantly lower at all locations.

Air pollution with PM₁₀ was the lowest in 2021 since we have been carrying out measurements. For the first time, at no monitoring site did the sum of exceeding the daily limit value for PM₁₀ (50 µg/m³) exceed the number of 35, which is allowed for the whole year. Even the annual limit value for PM₁₀ in 2021 was not exceeded at any monitoring site.

Between 1980 and 2021, extreme events related to climate change in EU-27 resulted in an economic loss of EUR 560 billion, of which EUR 56.6 billion from 2021. Climate extremes are becoming more common. Without further action, even greater economic damage is expected in the future. This trend is also noticeable in Slovenia. The difference between the period 1980-2015 and 1980-2021 is as much as € 2,38 billion. In comparison to the previous period 1980-2020, the difference is € 1,01 billion.

The large majority of organisations from the public and service sector believe that they are ecologically conscious and that they separate waste. The majority of organisations responded that the efficient use of energy in their business premises is important due to both reducing the costs and to protect the environment. Three quarters of companies and two thirds of public administration organisations have stated that they are well familiar with the environmental impact of their business premises.