3 December, 2025 | Waste Management
DCW was pleased to co-author two papers on a system-wide assessment of Indonesia’s plastic value chain. One, mapping external stakeholders, was published this week in the journal Environment Systems and Decisions. The other mapped both plastic and monetary flows and stakeholders dynamics, and was published in July in the high impact Journal of Cleaner Production. A third part of the trilogy was published in the Journal of Circular Economy in April 2025. All three papers demonstrate the innovative use of the structured systems-based framework provided by CVORR (Complex Value Optimisation for Resource Recovery), for the earlier development of which I chaired the Steering Committee. I also sat on the Advisory board of PISCES, a collaborative research project on preventing plastics pollution in Indonesia, from which these papers are outputs.
I am grateful to the two lead authors Eleni Iacovidou and Spyridoula Gerasimidou; and to my fellow co-authors Professor Susan Jobling; Eddy Setiadi Soedjono; Jessika Luth Richter; Mike Webster; Andre Kuncoroyekti; and Elena Lovat.
17 March, 2025 | Publication, Waste and resource management
In DCW’s new paper with Andy Whiteman and Nicole Hennessy, published open access by the leading journal Oxford Development Studies, we spotlight the urgent need to rethink how to extend waste services to reach underserved communities. UNEP and ISWA’s GWMO2024 estimates that 2.7 billion people worldwide still lack access to solid waste collection, with at a least a billion more whose collected waste is open dumped or burned. Progress in extending services in upper middle income countries and in parts of larger cities in lower income countries has been steady, but too many unserved or underserved communities are proving hard to reach. We argue that it is time for a radical rethink of our approach to tackle this global waste emergency.
The benefits of extending services to underserved communities (i.e. reaching 95+% on both components of indicator SDG 11.6.1. i.e collection coverage and controlled disposal) are Win⁵ (i.e. win-win-win-win-win): better community services, reduced disease outbreaks, more sustainable livelihoods, reduced municipal solid waste quantities and management costs, and reduced local and global environment impacts. The costs are local but the benefits are global and local: extending services to meet SDG11.6.1 would reduce macroplastic dispersal to the environment by ~80% and significantly mitigate climate heating.
Cities can transition earlier to more circular, integrated, sustainable, waste and resource management (WaRM), through initiating governance reforms; making early no regret investments; and focusing on what money matters? No regret investments include extending collection services; supporting recovery value chains – e.g. separating (wet) organic wastes from (dry) recyclable materials at source unlocks markets for both; and upgrading existing designated disposal facilities. A blend of finance is needed, from national and city sources, resource revenues, disposal pricing, extended producer responsibility (EPR) and international development (including climate and plastics) finance). New multi-lateral impact funds are needed that target extension of services to underserved communities.
Thanks to the Oxford Development Studies editors Jo Beall and her co-editor Mansoor Ali for inviting us to contribute to the (in process) Special Issue on Integrated Sustainable (Solid) Waste Management.
2 December, 2024 | Environmental legislation, Waste Management
I am shocked that the 50th anniversary of the first environment control legislation in the 1970s, and specifically the UK’s Control of Pollution Act 1974 (CoPA) has received so little attention and celebration. So I have written a Comment piece on CoPA’s Golden Jubilee for resource.co, one of the leading online news sites read by (UK) waste and resource management professionals.
The waste and resource sector as we know it only exists due to strong and effectively enforced legislation to create a ‘level playing field’, which in principle should enable investment without fear of being undercut by lower standard facilities or indeed by waste criminals. Prior to legislation in the 1970s, the norm for collected wastes was disposal in uncontrolled or partially controlled ‘landfills’ which were often permanently on fire. As I have documented in my recent magnum opus, we have come a long way in 50 years, but we also still have a long way to go. That was illustrated starkly by the announcement in November 2024 of the closure of a UK state-of-the-art plastics recycling facility after just two years.
26 September, 2024 | Waste Management
My 2024 ISWA Publication Award for my ‘magnum opus’ was presented this week at the Gala Dinner at ISWA 2024 World Congress in Capetown. My thanks to Costas Velis for collecting the award on my behalf. The paper documents the evolution of waste and resource management over the last 50 years from my personal perspective as an involved witness, and uses that to reflect on current and future priorities.
In their citation ISWA say: ‘David emphasises the need for understanding and learning from the (past) to achieve improved (waste and resource) management around the world. The paper zooms in on three policy priorities that are critical globally: access to sustainable financing, rethinking sustainable recycling and worldwide extended producer responsibility. (In the Global South this) require(s) a people-centred approach, working with communities to provide both quality services and decent livelihoods for collection and recycling workers.’
The paper could not have been written without the work and support of the countless colleagues I have worked with over my now 50 year career – my warm thanks to you all! I have been motivated in writing this to ‘pass on the baton’ to the next generations – so please do follow ISWA’s endorsement and dip into the open access paper – I hope it gives you some inspiration.
As well as the full paper, I published a ‘taster’ version in March 2024 in the ISWA magazine Waste Management World. I struggled to squeeze 50 years of evolution since the first environmental controls over solid waste management were introduced in the 1970s, and reflections on priorities for the next decade(s), into my 50,000 word (but very accessible and readable!) contemporary witness magnum opus. I had to write a 200 word abstract, but it took me a while to prepare this short (2,500 word) ‘taster’ version. My basic thesis is that policy makers, practitioners and academics need to understand where waste and resource management has come from to plan confidently to meet future challenges and to avoid ‘reinventing the wheel’. So please have a read, pass it on to colleagues and dip into the full paper!
The title of the full paper is: Learning from the past to plan for the future. An historical review of the evolution of waste and resources management 1970-2020 and reflections on priorities 2020-2030 – The perspective of an involved witness.
1 March, 2024 | Publication, Resource and waste management
As lead author of UNEP and ISWA’s original Global Waste Management Outlook (GWMO) in 2015, and a contributing author to the long-awaited follow-up, I am thrilled to welcome the publication at UNEA-6 this week of GWMO 2024: Beyond an age of waste – Turning rubbish into a resource. Warm congratulations to the lead author, Zoë Lenkiewicz, who has written a concise and engaging report which will hopefully succeed in placing municipal solid waste management firmly where it belongs on the local and international political agenda.
Zoe has summed it up brilliantly in the 300 character summary on the back cover of the easy-to-skim-read 80-page report: ‘The Global Waste Management Outlook 2024 echoes the 2015 Global Waste Management Outlook’s call to action to scale up efforts to prevent waste generation; to extend adequate, safe and affordable municipal solid waste management to everyone worldwide; and to ensure that all unavoidable waste is managed safely.’ My thanks and congratulations to the patient project managers, Daniel Ternald of UNEP and Aditi Ramola of ISWA.
