Photo: chuttersnap / Unsplash
More than 65% of the world's population are projected to live in urban areas by 2050, with major implications resource use, energy, water and sanitation, and health and well-being. At the same time urbanization can bring benefits, especially efficiency gains. SEI examines these challenges in the round to advance sustainable urbanization.
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Past event / Design your own city with the Urban Labor-a-tree at York Environment Festival 2025 Game Night.
Past event / Ahead of COP30, SEI researchers joins Brazil roundtable on super pollutants to share policies, experiences and cooperation opportunities.
Feature / Researchers document how low-income communities in Bangkok are coping with the intense and unforgiving heat.
Project / Using a visual storytelling approach, this project documents everyday mobility practices and infrastructure use, revealing local issues.
Feature / A FOCI webinar showcased how tackling SLCPs like methane and black carbon can rapidly improve air quality and curb global warming.
Past event / SEI and UNEP will co-host a science-policy dialogue side event at the Second Africa Climate Summit 2025 in Addis Ababa.
Past event / The FOCI webinar offers an overview of SLCFs, their sources, trends, mitigation, and benefits for climate and air quality.
Project / The project boosts public–private collaboration to deliver inclusive climate and clean air transport initiatives in Nigeria.
Feature / Discover how SEI’s science-based strategies are turning research into real-world solutions for cleaner air and sustainable development.









