cover image: PLASTIC WASTE MAKERS INDEX 2023 - Basis of Preparation

20.500.12592/7vfr2p

PLASTIC WASTE MAKERS INDEX 2023 - Basis of Preparation

9 Feb 2023

To model the Following the “domestic first logic”, we modelled the trade of polymers and track the flow of polymers from trade of polymers based on the volume produced source to destination countries, we combined the in each country, by asset and polymer, as well as by outputs from the Polymer Production module with polymer-specific trade matrices provided by Wood bilateral trade data at the count. [...] For each asset, the exported volumes and specific export share for each country was the volumes that are converted domestically: calculated by dividing the total polymer exports of Based on the countries’ export share (eq.1), the country x by the total polymer production volumes assets’ market share in country, and the trade grids, of country x. [...] By computing both trade from countries as well as World Bank’s Integrated Trade Tool database.26 trade to countries, the model estimates the impact of the finished goods trade on polymer producer The trade matrices include detailed accounts of the top contribution to single-use plastic waste in each of the 25 importers and exporters, and their trade partners, countries and a new estimation of net. [...] This multiplied by the asset’s emissions intensity Cradle-to-monomer (based solely on carbon intensity of energy for the For polystyrene and PET, a single emission factor was country and region) gives the total emissions for 2021 applied to the production of the monomers (styrene, for the asset in question. [...] The total of all in-scope conversion emissions were attributed back the relevant polymer producing asset Each source country has an average distance calculated using the type of polymer and the percentage of the based on each traded country and sea freight emissions total polymer mass the asset had produced in factor applied to resultant average distance the trade proportion for the year.
Pages
62
Published in
Australia

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