Happiness, life satisfaction, and the greenness of urban surroundings

Abstract

Cities’ environmental factors are pivotal for the quality of life of the population, and green space is increasingly recognized as a significant environmental factor in this regard. In this analysis, we study the contribution of green space to happiness in a mid-sized city in the Global South. We use a population survey and open satellite imagery to assess the relationship between self-reported happiness and the surrounding greenness of the respondent's place of residence while controlling for age, gender, and socioeconomic status. We measure surrounding greenness using the average NDVI value within different distances from the home address, calculated with open satellite imagery. The results show that age and surrounding greenness are significantly correlated with happiness, while the relationships with gender and socioeconomic status appear to be not significant. Our results indicate that increases of 10% in surrounding greenness at different distances from 100 up to 500 m increase the likelihood of self-reported happiness between 13% and 18%. When quality aspects of green areas are considered, they are also significantly correlated with happiness. This paper contributes to the knowledge of surrounding greenness and subjective well-being in one of the most urbanized regions in the world and promotes the discussion of well-being policies in urban planning. The results indicate that increasing surrounding greenness and its quality in dense urban environments could help to improve the quality of life and well-being of the urban populations in Global South cities like Cali.