Reducing emissions in the cooling sector

Cool Contributions fighting Climate Change II (C4 II): Advancing nationally determined contributions (NDCs) through climate-friendly and energy-efficient cooling

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  • Commissioning Party

    German Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV) 

  • Country
  • Lead executing agency


  • Overall term

    2021 to 2025

  • Products and expertise

    Climate environment, management of natural resources


The Paris Agreement (PA) and the Kigali Amendment to the Montreal Protocol (MP) provide the international framework for sustainable cooling. However, more policy coherence between the PA and MP is needed to enable ambitious climate action in the refrigeration and air conditioning (RAC) sector. The global project Cool Contributions fighting Climate Change II (C4 II) is a continuation of the IKI project "Cool Contributions fighting Climate Change" and assists policymakers in designing and implementing more ambitious nationally determined contributions (NDCs) in the cooling sector. The focus countries are Costa Rica, Grenada and the Philippines. 


Improved competencies of key actors in the RAC sector and related structures have led to more sustainable cooling solution and reduced GHG emissions.


The project pursues country-specific aims in its cooperation with the three partner countries in two ways: Firstly, the countries will receive support in advancing and implementing the cooling strategies developed during the first project phase. Secondly, all three countries will come to serve as valuable sources of knowledge on cooling strategies, policy approaches and green cooling technology demonstration, which is highly relevant for an increasing number of third countries.  


A sustainable approach enabling a strong multiplier effect lies at the core of the project. Best practices and instruments developed in C4 I are to be made available to other countries for replication in blueprints and guidelines. This includes, for instance, a blueprint on sector-specific NDCs or a roadmap for the introduction of Minimum Energy Performance Standards (MEPS). Proven approaches are to be systematically transferred to other regions, which in turn will increase awareness of Green Cooling. 

Last update: January 2023

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