What is CAT?
What is the Climate Action Tracker?
The Climate Action Tracker (CAT) is an independent scientific analysis produced by three research organisations tracking climate action and global efforts towards the globally agreed aim of holding warming below 2°C, since 2009.
The CAT Consortium
PIK (Potsdam Institute for Climate Impact Research) is a collaborator of the project as scientific advisor and data provider. The global aggregation and pathway extension methodology and tools were developed by PIK as partner in the project between 2009 and 2016. The consortium has now absorbed activities previously performed by PIK. The global aggregation and climate modelling methods from PIK are still used for the CAT temperature calculations and emissions data from the PIK PRIMAP emissions module are used for the country analysis.
The CAT tracks 32 countries covering around 80% of global emissions
All the biggest emitters and a representative sample of smaller emitters covering about 80% of global emissions and approximately 70% of global population. The national actions we track are:
- Effect of current policies on emissions: The policies a government has implemented or enacted and how these are likely to affect national emission over the time period to 2030, and where possible beyond.
- Impact of pledges, targets and INDCs (link) on national emissions over the time period to 2030, and where possible beyond.
- Fair share and comparability of effort: Whether a government is doing its “fair share” compared with others towards the global effort to limit warming below 2?C.
CAT calculates global warming consequence and emissions gaps
The Climate Action Tracker assesses the total global effort of INDCs, pledges and current policies on:
- Global warming over the 21st century. Global emissions pathways consistent with government actions are analyzed and climate consequences projected using a carbon-cycle / climate model (MAGICC).
- Emissions Gap: The gap in 2020, 2025 and 2030 between the emissions levels needed to limit warming below a 2°C increase above pre-industrial levels (and to bring warming below 1.5°C by 2100) and the emissions that are projected to result from INDCs, pledges and current policies.
New Developments in course of 2015/2016
- Can countries do more? Comparison of (I)NDCs and current policies to emission reduction potentials based on a literature review and additional economic analysis.
- Tracking decarbonisation progress: Comparison of (I)NDCs and current policies with national and sectoral decarbonisation rates consistent with holding warming below 2oC.
Past consortium members have included the Potsdam Institute for Climate Impact Research (2009–2016).
The Climate Action Tracker is made possible due to generous support from the ClimateWorks Foundation and the German Ministry for Environment, Nature Conservation, Buildings and Nuclear Safety (BMUB) via the International Climate Initiative. Past supporters include the European Climate Foundation and the Children’s Investment Fund Foundation.