Traded plastic, traded impacts? Designing counterfactual scenarios to assess environmental impacts of global plastic waste trade
Creators
- 1. Institute of Environmental Sciences (CML), Leiden University, 2333 CC, Leiden, The Netherlands
Description
The corresponding paper has been published in Environmental Science & Technology (https://pubs.acs.org/doi/10.1021/acs.est.4c02149)
Please cite the code via this link:
Li, K.; Ward, H.; Lin, H. X.; Tukker, A. Traded Plastic, Traded Impacts? Designing Counterfactual Scenarios to Assess Environmental Impacts of Global Plastic Waste Trade. Environmental Science & Technology 2024, 58 (20), 8631-8642. DOI: 10.1021/acs.est.4c02149..
code_md_z.py: The Python script for calculating results and plotting.
- Import packages
- Functions and lists defined
- Retrieve bilateral trade of 2013-2022 from the UN Comtrade database
- Read original data 2013-2022
- Drop "TOTAL MOT" in the reporter country if other MOT exist
- Replace 0 or nan netweight if other weight metrics(altQty or qty) exist
- Replace zero and empty netweight values from similar trade
- Average only: drop "TOTAL MOT" and repeated trade from the partner
- Transfer X into M (exchange the position of reporter and partner)
- Research country selection and trade share
- Build common transport modes for 26 research countries
- Use common transport modes to replace unspecified modes
- Life cycle inventory of transport
- Treatment environmental impacts
- Plots
All the supporting pickle files and Excel files:
df10.pkl: The dataframe of original trade data retrieved from the UN COMTRADE database spanning 2013 to 2022.
lst2_model.pkl: The list of dataframes including trade data after dropping redundant transport modes.
lst5_model.pkl: The list of dataframes including trade data after replacing trade with 0 or nan net weight and averaging from the repeated trade.
df_3.pkl: The dataframe of selected research countries after ranking them during 2020-2022.
df_td: The dataframe of the common transport modes among research countries aiming to replace unspecified transport modes in trade data.
lst9.pkl: The list of dataframes of trade data after replacing the unspecified transport modes.
CERDI-seadistance.xlsx: The Excel file of the CERDI-seadistance database sourced from https://ferdi.fr/en/indicators/the-cerdi-seadistance-database.
df_ship.pkl: The dataframe of sea, air and road distance between research countries (sea distance from CERDI-seadistance database; road distance from calling API of Bing map; Air distance by measuring the great-circle distance given capital coordinates).
sce_trans.xlsx: The Excel file of the environmental impact intensity of transports.
df_EItra.pkl: The dataframe of the environmental impact of transport per kg after multiplying the environmental impact intensity of transports and distance across research countries and transport modes.
sce_rt4.xlsx: The dataframe of the environmental impact intensity of plastic waste treatments across countries.
df_lp2.xlsx: The required recycling rate (RRR) across research countries and plastic waste types.
df3_4.xlsx: The Excel file of the environmental impact results under different scenarios.
Files
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Additional details
Related works
- Is published in
- Journal article: 10.1021/acs.est.4c02149 (DOI)