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romainsacchi committed Nov 13, 2024
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2 changes: 1 addition & 1 deletion paper.bib
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Expand Up @@ -139,7 +139,7 @@ @article{Volkart:2018

@article{Vandepaer:2020,
author = {Vandepaer, Laurent and Panos, Evangelos and Bauer, Christian and Amor, Ben},
doi = {doi.org/10.1021/acs.est.9b06484},
doi = {10.1021/acs.est.9b06484},
journal = {Environmental Science & Technology},
pages = {5081-5092},
title = {{Energy system pathways with low environmental impacts and limited costs: Minimizing climate change impacts produces environmental cobenefits and challenges in toxicity and metal depletion categories}},
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12 changes: 6 additions & 6 deletions paper.md
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Expand Up @@ -54,7 +54,7 @@ a growing body of literature in scenario-based pLCA for emerging technologies
[@Bisinella:2021].

Extending present-day life-cycle inventories into the future using IAM outputs,
initially explored by [@MendozaBeltran:2018] and formalized by the Python library
initially explored by @MendozaBeltran:2018 and formalized by the Python library
`premise` [@Sacchi:2022], forms the methodological basis for pLCA. Efforts in pLCA
focus on improving forecasting accuracy. Performing system-wide LCAs with
adjusted life cycle inventories at each time step has potential to enhance
Expand All @@ -66,9 +66,9 @@ complexities, such as defining functional units based on IAM outputs and
resolving double-counting issues [@Vandepaer:2020],[@Volkart:2018].

Several studies characterize energy scenarios with LCA, including
[@Gibon:2015], [@Rauner:2017] and [@Pehl:2017], who quantified ESM or
@Gibon:2015, @Rauner:2017 and @Pehl:2017, who quantified ESM or
IAM scenario outputs using a hybrid-LCA framework. There is also the work of
[@Xu:2020], who developed the ambitious EAFESA framework aiming for
@Xu:2020, who developed the ambitious EAFESA framework aiming for
bidirectional coupling between ESM and LCA. Yet, these studies focused
on specific sectors or technologies and have not yet generalized to broader
scenarios and indicators, nor have they made their implementations widely available.
Expand All @@ -94,7 +94,7 @@ scenario environmental impacts. `pathways` works particularly well with
data packages produced by `premise`, but can be used with any ESM/IAM scenarios
and LCA databases. Using LCA matrices which have been modified to reflect
the scenario's time-dependent technology mixes ensures a consistent and coherent
characterization of said scenario.
characterization of the scenario.


# Description
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To address this, the original LCI database is adjusted by
zeroing out all regional energy inputs that the energy system
model accounts for and might demand during the system's life cycle,
following the same workflow presented in [@Volkart:2018] (see 5 in Figure 1).
following the same workflow presented in @Volkart:2018 (see 5 in Figure 1).
Practitioners are required to selectively cancel out overlapping activities already
accounted for by the scenario. We use a modular approach in this adjustment process,
where practitioners, based on their understanding of the model generating the scenario,
Expand All @@ -147,7 +147,7 @@ within the LCA, as the scenario’s total electricity demand already covers this
This process is implemented in the `remove_double_accounting` function, which modifies the
technosphere matrix to remove redundant entries. The function identifies flagged
products for removal, locates the associated rows, and zeroes out the corresponding positions
taking any specified exceptions.For instance, in the electricity-steel example, the function
taking any specified exceptions. For instance, in the electricity-steel example, the function
would find the row corresponding to regional electricity and cancel out the input in the column
associated with steel production, effectively preventing double counting of electricity demand.
This modular approach enhances transparency and traceability, making it easier to document and
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