Greenspace is an important component of urban nature, providing vital ecosystem services to society 1, 2 and protecting human health 3, 4, 5. These findings highlight the need for prioritizing greening policies to mitigate environmental disparity and achieve sustainable development goals. We quantify that 22% of the spatial disparity is associated with greenspace provision, and 53% is associated with joint effects of greenspace provision and spatial configuration. Greenspace exposure inequality (Gini: 0.47) in Global South cities is nearly twice that of Global North cities (Gini: 0.27). Global South cities experience only one third of the greenspace exposure level of Global North cities. We identify a contrasting difference of greenspace exposure between Global South and North cities. Here, we develop a methodology incorporating fine-resolution population and greenspace mappings and use the results for 2020 to elucidate global differences in human exposure to greenspace. Yet, how far we are from this goal remains unclear. The United Nations specified the need for “providing universal access to greenspace for urban residents” in the 11th Sustainable Development Goal.
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