Climate Action Aggregation Tool (CAAT)

For Non-state and Subnational Action

The ICAT Climate Action Aggregation Tool (CAAT) guides users in a step-by-step process to define a research scope, compile non-state and subnational actor data for bookkeeping, and perform analyses at various levels of complexity in a user-friendly, macro-enabled Excel file.

All calculations, analytical components, and peer-reviewed methodologies are fully integrated to produce actionable results in an array of summary statistics, tables and graphs tailored to users’ selected assessment objectives and defined scope. Built-in user functions such as data validation checks, buttons, and info boxes are embedded throughout the tool to equip users in their assessments without extensive prior experience. The tool is further supplemented with a user introduction presentation, methodology note, data collection template, and video training.

The CAAT can deliver results for the following primary use cases:

  1. Landscape analysis describing the number of actions, action and actor types, temporal ranges, and emissions covered by NSAs. Users can use this information to get an overarching perspective on the breadth of actors pursuing climate action, assess the nature and ambition levels of sectors and actor groups, and identify frontrunners and laggards in climate action.
  2. Impact and overlap analysis aggregating annual potential emission reduction impacts from NSAs for any year between 2015 and 2050. The tool helps users determine a reference GHG emissions scenario and a scenario under target realization for each action, and to calculate potential impact in terms of GHG emission reductions. Further, it includes built-in functions and methodologies for the analysis of overlaps between NSAs from different actor groups to depict the actual potential emission reduction impact more accurately. Users can use this information to assess the magnitude and significance of NSAs and their possible impact on carbon budgets.
  3. Comparison of NDC or other policy scenarios with integrated projected emission reductions from NSAs. Users can input up to five defined national emission pathways from various policy scenarios (e.g., business-as-usual, current policies, or NDC) in the tool to further assess the extent to which NSAs can contribute to achieving—or exceeding—regional and national climate targets. The results can be used to determine the need for additional climate action or the ratcheting up of targets.

The tool was developed by NewClimate Institute with support from World Resources Institute under the Initiative for Climate Transparency (ICAT).

If you want to know more about the tool, please contact Swithin Lui or Sybrig Smit.

Project applications:

The Non-state and Subnational Action Guide

Our Non-State and Subnational Action Guide facilitates the integration of the impacts of actions by entities such as states, regions, cities, and businesses into national GHG projections and mitigation assessments.

Associated Publications:

Non-state and subnational climate action in Latin America and the Caribbean Feb 2022 - This paper provides an overview of climate commitments and actions from non-state and subnational actors… Read More
Non-state and subnational climate action in China and India Dec 2021 - The two reports present a brief overview of emerging climate action by cities, regions, and… Read More
The ambition loop in motion for electric vehicles in the automotive industry Oct 2021 - Car manufacturers have responded to recent national government policies and market signals by setting ambitious… Read More
Global climate action from cities, regions and businesses – 2021 Jun 2021 - This report is the third and the latest edition of the series since 2018 that… Read More
Enhancing national climate ambition through city and business climate change targets: a whole-of-society approach Feb 2021 - A new tool to evaluate integrated climate action of non-state and subnational actors The world… Read More
Subnational and non-state action in the EU Dec 2020 - This working paper describes the landscape, (additional) GHG emission reduction potential, and progress towards target… Read More
Navigating the nuances of net-zero targets Oct 2020 - We seek to unravel net-zero targets to better enable the identification of truly ambitious actors… Read More
Sub- and non-state climate action: A framework to assess progress, implementation and impact Oct 2020 - This Climate Policy journal article introduces a conceptual framework to assess the progress, implementation, and… Read More
Accelerating Net Zero: Exploring Cities, Regions, and Companies’ Pledges
to Decarbonise
Sep 2020 - A growing number of subnational and corporate actors set net-zero emissions targets. This paper provides… Read More
Correcting course: the emission reduction potential of international cooperative initiatives Aug 2020 - This article quantifies the aggregate potential of greenhouse gas (GHG) emissions reductions in 2030 from… Read More