{"id":17468,"date":"2024-02-05T07:09:31","date_gmt":"2024-02-05T06:09:31","guid":{"rendered":"https:\/\/thesmartcityjournal.cibeles.net\/sin-categoria\/oxford-scientists-launch-ambitious-roadmap-for-a-circular-carbon-plastics-economy\/"},"modified":"2024-11-20T12:39:36","modified_gmt":"2024-11-20T11:39:36","slug":"oxford-scientists-launch-ambitious-roadmap-for-a-circular-carbon-plastics-economy","status":"publish","type":"post","link":"https:\/\/www.thesmartcityjournal.com\/en\/circular-economy\/oxford-scientists-launch-ambitious-roadmap-for-a-circular-carbon-plastics-economy","title":{"rendered":"Oxford scientists launch ambitious roadmap for a circular carbon plastics economy"},"content":{"rendered":"<p class=\"lead\">In a paper published this week in&nbsp;Nature, the authors argue for a rethinking of the technical, economic, and policy paradigms that have entrenched the status quo, one of rising carbon emissions and uncontrolled pollution<\/p>\n<p>Currently&nbsp;<a href=\"https:\/\/www.nature.com\/articles\/s41558-019-0459-z\" target=\"_blank\" rel=\"noopener\">the global plastics system results in over 1 gigatonnes per year of carbon dioxide equivalent emissions&nbsp;<\/a>which is the same as the total combined emissions of Europe\u2019s three largest economies (UK, Germany and France). If left unchecked,&nbsp;<a href=\"https:\/\/www.nature.com\/articles\/s41893-022-01054-9\" target=\"_blank\" rel=\"noopener\">these emissions could rise to 4-5 gigatonnes per year and intensify other forms of pollution<\/a>. Another problem is the lack of effective recycling \u2013&nbsp;<a href=\"https:\/\/www.oecd.org\/environment\/plastic-pollution-is-growing-relentlessly-as-waste-management-and-recycling-fall-short.htm\" target=\"_blank\" rel=\"noopener\">in 2019, only 9% of the world&#8217;s plastic waste was turned into new products through mechanical recycling<\/a>. The majority ended up in landfills or was incinerated, and a significant proportion was mismanaged, ending up polluting terrestrial and marine ecosystems.<\/p>\n<p>The authors analyse the current and future global plastics system, proposing technical, legal, and economic interventions from now until 2050 to allow it to transition to net zero emissions and to reduce other negative environmental impacts. The study includes a future scenario centred on four targets:<\/p>\n<ul>\n<li>Reducing future plastics demand by one half, substituting and eliminating over-use of plastic materials and products.<\/li>\n<li>Changing the way plastics are manufactured to replace fossil fuels as the hydrocarbon source to use only renewably raw materials, including waste biomass and carbon dioxide.<\/li>\n<li>For recoverable plastics, maximising recycling very significantly, targeting 95% recycling of those materials which are retrievable from wastes.<\/li>\n<li>Integrating plastic manufacturing and recycling with renewable power and minimising all other negative environmental impacts, including of additives.<\/li>\n<\/ul>\n<p>The authors emphasise the need for concerted action across all four target areas to ensure the global plastics systems curbs its climate impacts and meets UN Sustainable Development Goals.<\/p>\n<p>Lead author&nbsp;<a href=\"https:\/\/www.chem.ox.ac.uk\/people\/charlotte-williams\" target=\"_blank\" rel=\"noopener\">Professor Charlotte Williams<\/a>&nbsp;(Department of Chemistry, University of Oxford) said: \u2018We need plastics and polymers, including for future low emission technologies like electric vehicles, wind turbines, and for many essential everyday materials. Our current global plastics system is completely unsustainable, and we need to be implementing these series of very bold measures at scale, and fast. This is a solvable problem but it needs coherent and combined action, particularly from chemical manufacturers.\u2019<\/p>\n<p>To successfully transition the plastics system, the authors set out principles to ensure \u2018smart materials design\u2019 and differentiate between plastics which are recoverable and irretrievable after use, noting that there is not a one size fits all solution. Rather, the authors propose careful use of the design principles to help select the optimum production methods and appropriate use of resources, deliver the required performances, ensure waste management, and minimise broader environmental impacts. A timeline of technical-economic-policy and legal interventions helps readers focus on the actions needed to reach net zero emissions by 2050.<\/p>\n<p>\u2018The time for action has arrived, we cannot afford to wait any longer,\u2019 study co-author Fernando Vidal, Postdoctoral Researcher in Chemistry at POLYMAT in Spain and former Oxford Martin School Fellow on the Future of Plastics concluded. \u2018We must change our concepts around the way we make, use, and dispose of plastics, otherwise we risk perpetuating this problem. The upcoming UN Global Plastic Treaty is the opportunity to make a lasting change in the right direction.\u2019<\/p>\n<p>Study co-author&nbsp;<a href=\"https:\/\/www.smithschool.ox.ac.uk\/person\/professor-cameron-hepburn\" target=\"_blank\" rel=\"noopener\">Cameron Hepburn<\/a>, Battcock Professor of Environmental Economics at the Oxford\u2019s Smith School of Enterprise and the Environment, said: \u2018The problem is that plastics, while contributing hugely to global pollution and greenhouse gas emissions, are extraordinarily useful. Our research finds that creating a circular economy for plastics in order to reduce their negative impacts is possible, but only if we can reduce future demand by half, switch to renewable plastics that aren\u2019t made from fossil fuels, recycle 95% of what\u2019s left, and minimise environmental impacts at every step of the process.<\/p>\n<p><a href=\"https:\/\/www.ox.ac.uk\/news\/features\/unlocking-more-sustainable-futures-green-chemistry\" target=\"_blank\" rel=\"noopener\">Professor Williams\u2019 research group is actively engaged in developing innovative solutions to meet this goal.<\/a>&nbsp;A particular focus is to investigate techniques that can manufacture plastics from abundant renewable resources (such as carbon dioxide, biomass or industrial wastes), rather than petrochemicals.<\/p>\n<p>She said, &#8216; I undertook part of my training 20 years ago in the USA, where they made the first commercial bio-derived plastics. Seeing how well these materials performed was very inspiring. This led me to explore how to make sure these \u2018alternative\u2019 materials meet all the property specifications and application needs we have but with a designed end-life fate and energy efficiency throughout their lifecycles.\u2019<\/p>\n<p>The paper \u2018Designing a Circular Carbon and Plastics Economy for a Sustainable Future\u2019 has been published in&nbsp;<em><a href=\"https:\/\/www.nature.com\/articles\/s41586-023-06939-z\" target=\"_blank\" rel=\"noopener\">Nature<\/a><\/em>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In a paper published this week in&nbsp;Nature, the authors argue for a rethinking of the technical, economic, and policy paradigms that have entrenched the status quo, one of rising carbon emissions and uncontrolled pollution Currently&nbsp;the global plastics system results in over 1 gigatonnes per year of carbon dioxide equivalent emissions&nbsp;which is the same as the\u2026<\/p>\n","protected":false},"author":2,"featured_media":17467,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_scj_primary_category_id":62,"_scj_featured":false,"_scj_featured_from":"","_scj_featured_until":"","_scj_featured_order":0,"_scj_visibility_class":"current","_scj_layout_family":"standard","_scj_article_style":"","_scj_display_overrides":[],"_scj_intro_image_id":17467,"_scj_intro_alt":"Oxford scientists launch ambitious roadmap for a circular carbon plastics economy","_scj_intro_caption":"","_scj_intro_class":"","_scj_intro_float":"","_scj_full_image_id":17467,"_scj_full_alt":"Oxford scientists launch ambitious roadmap for a circular carbon plastics economy","_scj_full_caption":"","_scj_full_class":"","_scj_full_float":"","_scj_media_type":"","_scj_media_provider":"","_scj_media_external_id":"","_scj_media_url":"","_scj_media_poster_id":0,"_scj_media_width":0,"_scj_media_height":0,"_scj_media_aspect_ratio":"","_scj_media_description":"","_scj_gallery_items":[],"_scj_related_post_ids":[],"_scj_additional_authors":[],"scj_layout_family":"standard","scj_media_provider":"","scj_media_url":"","scj_full_caption":"","footnotes":""},"categories":[62],"tags":[],"class_list":["post-17468","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-circular-economy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Oxford scientists launch ambitious roadmap for a circular carbon plastics economy - thesmartcityjournal.com<\/title>\n<meta name=\"description\" content=\"Currently\u00a0the global plastics system results in over 1 gigatonnes per year of carbon dioxide equivalent emissions\u00a0which is the same as the total combined emissions of Europe\u2019s three largest economies (UK, Germany and France). 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