This repository contains the input data, codes and results of the model developed in the paper "Quantifying environmental impacts of primary aluminum ingot production and consumption: A trade-linked multilevel life cycle assessment" published in the Journal of Industrial Ecology (2020) by Alexandre Milovanoff^a, I. Daniel Posen^a, Heather L. MacLean^a.
^a Department of Civil & Mineral Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4 Canada

How to use this repository

This repository will not be updated but can be cloned and serve as an example to develop trade-linked multilevel life cycle assessment. There are two ways to use this repository:

• Install the model, reproduce it and re-use it for your own research. Note: After downloading the repository, change the working directory of the 1-model_set_up.py and 2-simulations.py scripts to the repository directory (e.g., C:/Users/Alexandre/GitHub/jie_milovanoff_et_al_2020).
• Download the repository and extract the numerical values of the simulations presented in outputs folder.

Feel free me to contact if you have any questions via email (alexandre.milovanoff@mail.utoronto.ca) or by GitHub @amilovanoff.

Repository description

The repository comprises 3 folders.

• inputs: Contains the external and internal inputs to run the model.
• source: Contains the python script to develop the model and run the simulations.
• outputs: Contains the .csv files of the results presented in the manuscript and SI.

How to set up the model

The python-based model requires the Brightway2 software (https://brightway.dev/), and the ecoinvent 3.4 cutoff database (https://www.ecoinvent.org/) uploaded in the Brightway2 environment.

• Run the 1-model_set_up.py script. It will adjust the local database to the model.
• Run the 2-simulations.py script. It will simulate the different results of the manuscript.

The other scripts contain functions developed for the purpose of the model.