Climate Action Tracker

An independent science-based assessment tracking all countries‘ emission reduction pledges and their implementation. CAT assessments are regarded as the thermometer of international climate action ambition.


Thermometer shows the global-mean temperature increase above pre-industrial by 2100, with an uncertainty range originating from carbon-cycle and climate modelling.

Independent Scientific Analysis

The Climate Action Tracker (CAT) is an independent scientific analysis that measures government climate action against the globally agreed aim of holding warming well below 2°C, and pursuing efforts to limit warming to 1.5°C. It is produced by two research organisations: Climate Analytics, and NewClimate Institute.

The Climate Action Tracker tracks climate pledges and policies of 32 countries, covering around 80% of global emissions, including all the biggest emitters and a representative sample of smaller emitters. The analysis focuses on:

  • Government climate action pledged to the UNFCCC (and INDCs, other commitments)
  • The policies a government has actually implemented to meet its commitments
  • Whether a government is doing its “fair share” compared with others
  • Comparison to emission reduction potential based on a literature review
  • Comparison of national and sectoral decarbonisation indicators

Individual country assessments, briefings and updates are available



In Paris, all governments solemnly promised to come to COP26 with more ambitious 2030 commitments to close the massive 2030 emissions gap that was already evident in 2015. Three years later the IPCC Special Report on 1.5°C reinforced the scientific imperative, and earlier this year it called a climate “code red.” Now, at the midpoint of Glasgow, it is clear there is a massive credibility, action and commitment gap that casts a long and dark shadow of doubt over the net zero goals put forward by more than 140 countries, covering 90% of global emissions.  
The new IPCC report on climate science has reinforced the absolute urgency of closing the 2030 emissions gap if there is to be any chance of limiting warming to 1.5°C. While people are suffering from ever more severe and frequent impacts of climate change around the globe, and the IPCC has yet again clearly demonstrated the feasibility and urgency of climate change mitigation, action to reduce greenhouse gas emissions continues to lag behind what is needed – in practically all countries and sectors. International climate finance to support action in developing countries is falling short. Even countries with strong targets are mostly not on track to meet them, while more have failed to bring forward stronger commitments for 2030.  
Climate action announcements at US President Biden’s Leaders Summit on Climate, together with those announced since September last year, have improved the Climate Action Tracker’s warming estimate by 0.2°C. End of century warming from these Paris Agreement pledges and targets is now estimated to be 2.4°C.  
This policy brief discusses economy-wide and sector-level benchmarks in 2030 and beyond for Japan to be consistent with the Paris Agreement’s long-term 1.5°C warming limit, based on recent analyses by the Climate Action Tracker and its member organisations, NewClimate Institute and Climate Analytics. The benchmarks presented in this brief are set in such a way that the world would not have to rely excessively on unproven negative emission technologies in the second half of this century.  
The recent wave of net zero targets has put the Paris Agreement’s 1.5°C within striking distance. In this global update, the Climate Action Tracker (CAT) has calculated that global warming by 2100 could be as low as 2.1°C as a result of all the net zero pledges announced as of November 2020.  


The "Climate Action Tracker" is an independent science-based assessment, which tracks the emission commitments and actions of countries.