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Waste Management in the Global South: an Inquiry on the Patterns of Plastic and Waste Material Flows in Colombo, Sri Lanka
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This dissertation analyzed plastic and waste material flows in Colombo, Sri Lanka, examining the social dynamics, governance structures, and ecological impacts of waste management in a developing city context. The research highlights how plastic waste management challenges in the Global South are deeply intertwined with urbanization, inequality, and colonial legacies.
Global plastic production continues to increase at an exponential pace, and global waste projections show waste generation rising by 70% by 2050. Plastic waste connects to all social processes, especially within the context of urbanization and development; urban planning and land management; GHG emissions; labor; social equity; public health; rural-to-urban migration; increasing population; increasing consumption; climate change; etc. The focus of this dissertation is an analysis of waste management practices in Sri Lanka using a grounded theory based methodology, with a goal to better understand the social and ecological impacts of plastic waste in Sri Lanka. This research fills a gap in understanding the complex social dynamics that factor into plastic management. The researcher works from the assumptions that waste is a social issue, that requires social responses that move beyond engineering and linear waste management; that designing a better or more efficient linear solid waste management system for the current realities of waste generation will only result in a continued, unsustainable waste system; and that plastics are truly a global challenge, relevant for global south contexts, and these challenges require local-appropriate solutions. The findings illuminate the network of local waste stakeholders, and highlight paths forward in waste reduction for Colombo that can lead towards a sustainable future.
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This review examines the evolving research landscape on microplastic pollution in Sri Lanka, comparing it to the broader South and Southeast Asian regional context. The paper identifies gaps in local monitoring data and highlights the need for standardized methodologies and expanded research capacity in the region.
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.