15 AUG 2025 (FRI) 15:00-15:15

GEOG HKU
Aug 15
1 min read

HKU GEOGRAPHY: Monthly Research Talks

Revealing Spatiotemporal Evolution of Global Urban Green Infrastructure and Its Implications for Environmental Justice: Evidence from Multi-Source Spatiotemporal Big Data

Date: 15 AUG 2025 (Friday)

Time: 15:00-15:15 (HKT)

Via Zoom: https://hku.zoom.us/j/98300713382?pwd=dGdqelhpWUwyOENmTUJyalVKemtHQT09

(No registration required)

Abstract:

The spatiotemporal evolution of global urban green infrastructure (UGI) has profound implications for environmental justice, particularly in the context of rapid urbanization and climate change. This study utilizes multi-source spatiotemporal big data, including satellite imagery, GIS data, and socio-economic datasets, to analyze the global dynamics of UGI from 2000 to 2022. By examining changes in UGI greenness, coverage, and distribution, we uncover significant disparities in access to green spaces across different socio-economic groups and regions. Our findings highlight that marginalized communities and cities in the Global South consistently experience lower levels of UGI exposure, exacerbating existing inequalities. This research emphasizes the critical need for equitable UGI planning and policy interventions to ensure that all urban residents can benefit from the ecosystem services provided by green infrastructure, thereby promoting environmental justice and sustainable urban development.