{"id":35378,"date":"2025-05-15T17:10:19","date_gmt":"2025-05-15T15:10:19","guid":{"rendered":"https:\/\/www.co2news.sk\/?p=35378"},"modified":"2025-05-15T17:11:13","modified_gmt":"2025-05-15T15:11:13","slug":"the-impact-of-primary-plastic-production-on-climate-change-is-a-threat-to-the-global-carbon-budget","status":"publish","type":"post","link":"https:\/\/www.co2news.sk\/en\/2025\/05\/15\/the-impact-of-primary-plastic-production-on-climate-change-is-a-threat-to-the-global-carbon-budget\/","title":{"rendered":"The impact of primary plastic production on climate change: A threat to the global carbon budget"},"content":{"rendered":"<p>Global annual production and demand for plastics, including elastomers and fibers, reached impressive levels in 2019 <strong>460 million metric tons (Mt)<\/strong>Since 2000, this production has grown steadily at an average annual rate of <!--more-->3.6 %. This rapid increase in plastic production and its continued dependence on fossil fuels, both as raw materials (input materials) and as energy for production processes, are contributing significantly to widespread environmental problems and health harms. Plastic pollution is thus becoming an increasingly serious threat not only to natural ecosystems and human health, but also to the climate. In response to this growing global crisis, 175 countries supported resolution 5\/14 at the United Nations Environment Assembly (UNEA) in March 2022 to end plastic pollution and develop an international, legally binding instrument by 2024, also known as the Global Plastics Treaty.<\/p>\n<p>Plastics production is a complex, multi-step process. It involves the extraction of fossil fuels, the refining and processing of hydrocarbons, the production of monomers (the basic building blocks), the polymerization itself (the joining of monomers into long chains), and finally the shaping of the final products. The nine main types of plastic polymers produced in large volumes include polyethylenes (LDPE, LLDPE, HDPE), polypropylene (PP), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polystyrene (PS) and other styrene plastics (SAN, ABS), and polyurethane (PU). These polymers account for almost 80 % of current plastic demand. The largest uses of plastic products are in the packaging industry (approximately 31 %), construction (16 %), and transportation (14 %).<\/p>\n<p>Despite growing awareness of the problem, there is <strong>lack of detailed and transparent information on the contribution of the entire life cycle of plastics to total greenhouse gas (GHG) emissions<\/strong> and what implications this has for the remaining global carbon budget needed to meet international climate targets. The emissions contribution of individual production stages and different types of plastic polymers is not sufficiently understood and openly communicated, making it difficult to accurately assess the true climate impact of plastics production.<\/p>\n<p>According to the analyses, they achieved <strong>GHG emissions from global primary plastics production in 2019 were approximately 2.24 GtCO2e.<\/strong> Projections suggest that, depending on demand growth scenarios, these emissions could reach 4.75 to 6.78 GtCO2e in 2050.<\/p>\n<p>To understand the significance of these emissions, it is crucial to assess them in relation to <strong>the remaining global carbon budget<\/strong>, which determines how much additional greenhouse gases we can emit to limit global warming to 1.5\u00b0C by 2050 with some probability. This budget is estimated at around 500 GtCO2e with a 50% probability or 400 GtCO2e with a 67% probability.<\/p>\n<p>The analysis shows that cumulative GHG emissions from global primary plastics production between 2020 and 2050 could amount to <strong>a significant portion of this limited carbon budget<\/strong>:<\/p>\n<ul>\n<li>In the scenario <strong>zero growth<\/strong> demand for plastics, cumulative emissions would reach 66.1 GtCO2e, representing <strong>13 %<\/strong> budget for 50% probability and <strong>16 %<\/strong> budget for 67% probability of limiting warming to 1.5\u00b0C.<\/li>\n<li>In the scenario <strong>2.5% growth<\/strong> cumulative emissions would increase to 88.7 GtCO2e, equivalent to <strong>17 %<\/strong> (50% probability) to <strong>22 %<\/strong> (67% probability) of the carbon budget.<\/li>\n<li>Highest scenario <strong>4% growth<\/strong> would lead to cumulative emissions of 105.0 GtCO2e, which would be cut <strong>21 %<\/strong> (50% probability) to <strong>26 %<\/strong> (67% probability) of the remaining carbon budget.<\/li>\n<\/ul>\n<p>These figures clearly demonstrate that without fundamental changes in the way plastics are produced and consumed <strong>their primary production represents a serious obstacle to efforts to meet global climate goals<\/strong>.<\/p>\n<p>The energy intensity of various manufacturing processes contributes to emissions. Product shaping, which converts polymer pellets into final products, typically consumes 3 to 22 GJ of energy per tonne of product. Polymerization also has variable energy intensity depending on the type of polymer.<\/p>\n<p>Sensitivity analysis of the results showed that emissions are most affected by the share of methanol-to-olefins (MTO) production, mainly due to the high energy intensity of methanol production from coal, which accounts for approximately 55 % of current global methanol production. Even processes with relatively lower energy consumption per unit, such as film extrusion for LDPE and LLDPE, can contribute significantly to total emissions due to their high share in the total production of these polymers. Sources also mention the release of CFC-11 during VCM production, which is a potent ozone-depleting gas and climate change.<\/p>\n<p>In conclusion, primary plastic production is a significant but often overlooked source of greenhouse gas emissions, which has <strong>a fundamental impact on the planet&#039;s ability to stay within safe climate limits<\/strong>A detailed understanding and addressing of emissions at all stages of the plastics life cycle is essential to achieving global climate goals. <em><strong>Spring<\/strong><\/em><\/p>\n<hr \/>\n<p>The research report was published on <a href=\"https:\/\/energyanalysis.lbl.gov\/publications\/climate-impact-primary-plastic\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Berkeley.lab<\/span><\/a><\/p>\n<hr \/>\n<p><strong>Glossary of key terms<\/strong><\/p>\n<ul>\n<li><strong>ABS (Acrylonitrile Butadiene Styrene):<\/strong> A thermoplastic copolymer made from three monomers: acrylonitrile, butadiene, and styrene.<\/li>\n<li><strong>AGO (Atmospheric Gas Oil):<\/strong> The crude oil component recovered from the bottom of the ADU tower.<\/li>\n<li><strong>ADU (Atmospheric Distillation Unit):<\/strong> A unit where crude oil is first distilled at atmospheric pressure.<\/li>\n<li><strong>Butadiene:<\/strong> A hydrocarbon used in the production of ABS and as a product of steam cracking.<\/li>\n<li><strong>Benzene:<\/strong> Aromatic hydrocarbon used in the production of PS, SAN, ABS and PU.<\/li>\n<li><strong>Blow molding:<\/strong> The process of shaping plastic products by blowing air into a heated plastic preform in a mold cavity.<\/li>\n<li><strong>BTX:<\/strong> A mixture of benzene, toluene and three isomers of xylene (o-xylene, m-xylene, p-xylene).<\/li>\n<li><strong>CMTO (Coal-based Methanol-to-olefin):<\/strong> The process of converting methanol obtained from coal into olefins such as ethylene and propylene.<\/li>\n<li><strong>CFC-11 (Chlorofluorocarbon-11):<\/strong> The gas released during the production of VCM and the polymerization of PVC contributes to ozone depletion and climate change.<\/li>\n<li><strong>Extrusion:<\/strong> The process of molding plastics by extruding heated plastic through a forming die.<\/li>\n<li><strong>EDC (Ethylene dichloride):<\/strong> Chemical used to produce VCM.<\/li>\n<li><strong>EG (Ethylene glycol):<\/strong> Monomer used in the production of PET.<\/li>\n<li><strong>EO (Ethylene Oxide):<\/strong> A chemical used in the production of EG and polyols.<\/li>\n<li><strong>EPS (Expanded Polystyrene):<\/strong> Expanded polystyrene used for insulation and packaging.<\/li>\n<li><strong>Ethylene:<\/strong> A key monomer used to make many polymers, most notably polyethylene.<\/li>\n<li><strong>Film extrusion:<\/strong> The process of producing plastic films by extruding plastic through a slotted die.<\/li>\n<li><strong>Flexible foam:<\/strong> PU foam type.<\/li>\n<li><strong>Fractionation:<\/strong> The process of separating natural gas components.<\/li>\n<li><strong>Gas mix:<\/strong> A mixture of light hydrocarbons such as LPG, propane and butene used in steam cracking.<\/li>\n<li><strong>GHG (Greenhouse Gas):<\/strong> Greenhouse gas (e.g. CO2, CH4).<\/li>\n<li><strong>GPPS (General Purpose Polystyrene):<\/strong> Unedited PS.<\/li>\n<li><strong>HCTO (Hydrocarbon Tail Oil):<\/strong> A component of crude oil obtained from a hydrocracking unit.<\/li>\n<li><strong>HDPE (High Density Polyethylene):<\/strong> A type of polyethylene with high density and crystallinity.<\/li>\n<li><strong>HIPS (High Impact Polystyrene):<\/strong> Polystyrene modified by the addition of rubber.<\/li>\n<li><strong>HVCs (High Value Chemicals):<\/strong> High-value chemicals, often by-products of steam cracking (e.g. ethylene, propylene, butadiene, benzene, toluene).<\/li>\n<li><strong>Hydrocracking:<\/strong> A petroleum refining process that breaks down heavier hydrocarbons into lighter ones in the presence of hydrogen.<\/li>\n<li><strong>Injection molding:<\/strong> The process of shaping plastic products by injecting molten plastic into a mold.<\/li>\n<li><strong>LAO (Linear Alpha-Olefins):<\/strong> Olefins with a double bond at the end of the carbon chain, used, for example, in the production of LLDPE.<\/li>\n<li><strong>LDPE (Low Density Polyethylene):<\/strong> A type of low-density, highly branched polyethylene.<\/li>\n<li><strong>LLDPE (Linear Low Density Polyethylene):<\/strong> A type of low-density polyethylene with a linear structure.<\/li>\n<li><strong>LPG (Liquefied Petroleum Gas):<\/strong> A mixture of propane and butane, used as a feedstock in steam cracking.<\/li>\n<li><strong>MDI (Methyldiphenylisocyanate):<\/strong> Diisocyanate used in the production of PU.<\/li>\n<li><strong>Monomer:<\/strong> A small molecule that binds with other monomers to form a polymer.<\/li>\n<li><strong>MTO (Methanol-to-olefin):<\/strong> The process of converting methanol into olefins such as ethylene and propylene.<\/li>\n<li><strong>Naphtha (Naphtha):<\/strong> A light hydrocarbon mixture obtained from petroleum refining, used as a feedstock in steam cracking.<\/li>\n<li><strong>PDH (Propane Dehydrogenation):<\/strong> The process of removing hydrogen from propane to produce propylene.<\/li>\n<li><strong>PET (Poly(ethylene terephthalate)):<\/strong> Polyester polymer used for bottles, fibers, and films.<\/li>\n<li><strong>Phosgene:<\/strong> Chemical used in the production of MDI and TDI.<\/li>\n<li><strong>Polybutadiene (Polybutadiene):<\/strong> Rubber used in the production of HIPS and ABS.<\/li>\n<li><strong>Polymer:<\/strong> A large molecule composed of repeating units (monomers).<\/li>\n<li><strong>Polyol (Polyol):<\/strong> A key component of polyurethanes, they can be polyether or polyester.<\/li>\n<li><strong>Polymerization:<\/strong> A chemical reaction in which monomers react to form a polymer.<\/li>\n<li><strong>PO (Propylene Oxide):<\/strong> A chemical used in the production of polyols.<\/li>\n<li><strong>PP (Polypropylene):<\/strong> A polymer used in many applications, including fibers and packaging.<\/li>\n<li><strong>Propylene:<\/strong> Monomer used for the production of PP and as a product of steam cracking.<\/li>\n<li><strong>PS (Polystyrene):<\/strong> A polymer made from the monomer styrene.<\/li>\n<li><strong>PTA (Purified Terephthalic Acid):<\/strong> Monomer used in the production of PET.<\/li>\n<li><strong>PU (Polyurethane):<\/strong> A polymer used in foams, elastomers, adhesives, and coatings.<\/li>\n<li><strong>PVC (Polyvinyl chloride):<\/strong> Polymer used in films, pipes and profiles.<\/li>\n<li><strong>Pygas (Pyrolytic gasoline):<\/strong> A highly aromatic hydrocarbon produced by steam cracking, used as a feedstock for BTX.<\/li>\n<li><strong>p-xylene:<\/strong> An isomer of xylene used in the production of PTA.<\/li>\n<li><strong>Rigid foam:<\/strong> PU foam type.<\/li>\n<li><strong>SAN (Styrene Acrylonitrile):<\/strong> Copolymer of styrene and acrylonitrile.<\/li>\n<li><strong>SC (Steam cracking):<\/strong> Steam cracking, the process of breaking down hydrocarbons at high temperatures and in the presence of steam to produce olefins and other HVCs.<\/li>\n<li><strong>SMR (Steam Methane Reformer):<\/strong> Unit for producing hydrogen from natural gas.<\/li>\n<li><strong>SMPO (Styrene Monomer\/Propylene Oxide):<\/strong> A process that co-produces styrene and PO.<\/li>\n<li><strong>SSP (Solid-state polymerization):<\/strong> Solid-state polymerization, used to increase the molecular weight of PET.<\/li>\n<li><strong>Styrene:<\/strong> Monomer used to produce PS, SAN and ABS.<\/li>\n<li><strong>Thermoforming:<\/strong> The process of forming plastic films or sheets by heating and then shaping.<\/li>\n<li><strong>TDI (Toluene diisocyanate):<\/strong> Diisocyanate used in the production of PU.<\/li>\n<li><strong>Toluene:<\/strong> An aromatic hydrocarbon used in the production of benzene and as a feedstock for TDI.<\/li>\n<li><strong>VCM (Vinyl Chloride Monomer):<\/strong> Monomer used to produce PVC.<\/li>\n<li><strong>VDU (Vacuum Distillation Unit):<\/strong> A unit for distillation of crude oil under reduced pressure to separate heavier components.<\/li>\n<li><strong>VGO (Vacuum Gas Oil):<\/strong> A component of crude oil obtained from VDU.<\/li>\n<li><strong>XPS (Extruded Polystyrene):<\/strong> Expanded polystyrene produced by extrusion, used for insulation.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Global annual production and demand for plastics, including elastomers and fibers, reached an impressive 460 million metric tons (Mt) in 2019. Since 2000, this production has grown steadily at an average annual rate of<\/p>","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-35378","post","type-post","status-publish","format-standard","hentry","category-uhlikova-stopa"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/posts\/35378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/comments?post=35378"}],"version-history":[{"count":0,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/posts\/35378\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/media?parent=35378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/categories?post=35378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/tags?post=35378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}