Methodology & Supporting Documents

Methodology & Supporting Materials

The PACTA for Banks Methodology allows users to perform climate scenario analysis on corporate lending portfolios. It consists of three core components: physical asset-level data, financial exposures, and climate scenarios. The PACTA methodology relies on an assessment of physical assets (such as steel or power plants) linked to financial assets (such as loans, bonds, and shares) and the alignment of these assets with climate scenarios.

While 2DII provides a specific set of scenario input and asset-bassed company level data, the methodology used to calculate the metrics is stand-alone. Any climate change scenario or asset-based company data (ABCD) set could be used to implement the methodology, provided that the ABCD and scenarios use the indicators on which the methodology is built.

The methodology document presented here is broken down into 3 sections:

  • Section 1 explains the methodology and the underlying rationale in more detail. It describes the output metrics and discusses the required inputs. Additionally, it details the scope of the methodology. Finally, it discusses different options for allocating the macro carbon budgets from sectoral pathways (scenarios) to micro-economic actors (portfolios/clients) and for allocating the physical asset-based company data to financial instruments such as loans.
  • Section 2 provides the mathematical formulas used to calculate the metrics.
  • Section 3 concludes with a breakdown of the sectors covered, including sector overviews, the metrics used, and data inputted.

This is a publicly available, “living” methodology, meaning that we are constantly exploring ways to improve it and expand its scope.

Users wishing to contribute to this process are encouraged to contact 2DII via

PACTA for Banks Supporting Documents

2DII has provided a series of documents and additional resources for banks to use as part of the PACTA for Banks Toolkit:

Scenario Input Files: 2DII has prepared a series of climate change scenario input files. These should be used in conjunction with the PACTA for Banks Software. These scenarios range from business-as-usual to better than Paris-aligned and are explained further in the Scenario Supporting Document.

Scenario input files with 2021 start year - to be used with Q4 2021 data

(edit made on 16/05/22 to correct starting year to 2021)



Old scenarios are provided for user's wishing to backdate their PACTA analysis. In doing so, users are encouraged to use loan book data, asset-based company data (ABCD) and scenario data from the same year.

Scenario input files with 2020 start year - to be used with Q4 2020 data

Scenario Supporting Document: 2DII has provided a supplementary document introducing climate change scenarios and summarising the key differences between them. Included in this document is an explanation of the methodology and assumptions used to convert third party scenario publications into the scenario input files above.

Scenario Supporting Document 2022


Emission Factor Models:

* The following correspond with Q4 2021 ABCD set from Asset Resolution.

Steel Asset Level Emission Model: This document details the methodology behind the steel emission intensities used in the PACTA for Banks Free Data Set.

Cement Asset Level Emission Model: This document details the methodology behind the cement emission intensities used in the PACTA for Banks Free Data Set.

Aviation Asset Level Emission Model: This document details the methodology behind the aviation emission intensities used in the PACTA for Banks Free Data Set.

Credit Portfolio Alignment: An application of the PACTA methodology by Katowice Banks in partnership with 2DII

At the 2018 COP24 in Katowice, five international banks - BBVA, BNP Paribas, ING, Société Générale and Standard Chartered - publicly pledged to develop an open-source methodology to progressively steer (or ‘align’) their lending portfolios with the goals of the Paris Agreement.

Since 2018, in addition to undertaking individual efforts, the Katowice Banks as a group has worked collectively with the 2° Investing Initiative to contribute to the development of PACTA for Banks. This document provides an overview of the application of the PACTA methodology and the options viewed as most useful by the Katowice Banks.

Funding Information

This project is part of the International Climate Initiative (IKI). The Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) supports this initiative on the basis of a decision adopted by the German Bundestag. The views expressed here are the sole responsibility of the authors and do not necessarily reflect the views of the funders.