Disparities in NatureScoreTM across US public schools: Implications for environmental and socioeconomic equity

초록

This study examines the impacts of NatureScoreTM on educational equity by analyzing its correlation with racial demographics and socio-economic status (SES) across 65,406 United States schools. While previous studies have examined nature access in educational contexts regionally, this study uniquely utilizes a comprehensive national dataset, evaluating NatureScoreTM disparities across racial and socio-economic groups in urban and rural public schools. Using a cross-sectional design with data from 2022, the variability in NatureScoreTM was analyzed concerning the percentages of students from different racial backgrounds and those participating in free or reduced-price lunch (FRPL) programs. Multiple linear regression and bootstrap ANOVA were conducted to assess these relationships. Results show significant disparities: NatureScoresTM are higher in schools with lower percentages of economically disadvantaged students and higher percentages of White students, indicating irregular distribution of nature across the U.S. Because NatureScoreTM is calculated from 1-km buffers, our estimates reflect equity in the surrounding outdoor environment rather than indoor spaces or on-campus micro-features (like playgrounds, gardens). In urban areas, the gap between low and high socio-economic status schools can reach up to 25 points on a 0 (deficit) to 100 (utopia) NatureScoreTM scale. Rural schools also show a consistent decline in NatureScoreTM with increasing levels of economic disadvantage, although the differences are smaller (approximately 2.5-5 points) than those observed in urban schools. These findings highlight the need for integrating environmental quality into educational and health equity frameworks, recommending targeted greeninfrastructure and nature-based learning interventions in schools, particularly in schools serving economically disadvantaged and minority communities.

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