Climate Action Tracker

The “Climate Action Tracker” is an independent science-based assessment, which tracks the emission commitments and actions of countries. The website provides an up-to-date assessment of individual national pledges to reduce their greenhouse gas emissions.

Project period
September 2009–ongoing

Children’s Investment Fund Foundation

Ecofys, NewClimate Institute




The Climate Action Tracker (CAT) has been developed to aid the climate negotiation process. Its aim is to provide objective, science-based information to governments, the media and campaign organisations, to provide information that will spur further climate action.

  • Governments need objective, independent, science-based analysis to evaluate their own efforts, inform policy decisions, learn from others, and challenge other countries to do more.
  • The media needs this information to shine a light beneath the complex pledges and press releases on to what governments’ actions really are, what this means for emissions and hence fully inform the public. Informed public opinion can further pressure governments to do more.
  • Campaign organisations need this information to focus their efforts in the right areas, provide robust scientific backing to their claims and to mobilise citizens in challenging their governments to do more.
  • International climate negotiations need advanced and objective analysis of what countries are pledging to do and are actually doing and what this means for global climate goals. With a new instrument being negotiated and a review of international climate action due to be conducted by 2015 the CAT can play a major role in providing assessments of what countries are actually doing and what it means for the climate.

What is the Climate Action Tracker?

World leaders have agreed to hold warming to below 2°C above preindustrial levels – and more than 100 of the world’s most vulnerable countries have demanded an even lower goal of below 1.5°C above preindustrial levels. But world leaders need to know how fast to reduce emissions to achieve these goals and whether in fact this action is taking place.

In other words, we need to know how far we have come: who is doing what, with what level of success and what is the potential for further action? Armed with this knowledge, we can determine what action needs to happen, where, and how we can support it.

The Climate Action Tracker was launched in November 2009 and assesses both developed and developing countries emission reduction pledges. Starting in 2011 the project also started to evaluate national implementation of policies that are relevant for GHG emissions.