Two air conditioners on a red roof

Promoting climate action and ozone protection through advisory services and investment

Ozone Fund (German Ozone Protection Advisory and Investment Fund)

Several trainees working on an air conditioning system under supervision.


International legal obligations under the Montreal Protocol require countries in the Global South to gradually reduce their use of substances that are harmful to the climate and the ozone layer. To this end, they must implement appropriate regulations and standards, as well as introduce and scale up the use of alternative, sustainable technologies. This requires them to provide advice and training to various target groups, from political decision-makers to (informal) maintenance technicians.

The transition to new technologies is supported by countries in the Global North via a multilateral fund (MLF). The Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH implements activities funded by the MLF in various partner countries on behalf of the German Government.

Im Bereich der Raumklimatisierung werden von Proklima und dem Ozonfonds besonders Klimaanlagen mit dem natürlichen Kältemittel Propan (R290) gefördert. Es ist ozon- und umweltfreundlich und besitzt exzellente Energieeffizienzeigenschaften. © GIZ Proklima / MMA


The partner countries are upholding their commitments under the Montreal Protocol and transforming the refrigeration and air conditioning sector.


The project is part of the Proklima cluster, which brings together projects from various clients that relate to sustainable cooling technologies.

The project supports the partner countries with the following measures:

  • It offers training for political decision-makers in various policy areas such as the environment, industry, vocational training and energy, for example on introducing or revising national standards.
  • The project trains and certifies refrigeration technicians in the proper and safe installation, operation and maintenance of new refrigeration and air conditioning equipment.
  • It supports the countries involved in using the Montreal Protocol process to gain funding for the projects and ensure their compliant implementation.
  • It pilots and scales up natural refrigerant technologies, for example air conditioning systems using propane (R290) and supermarket systems using CO2.
  • It uses communication activities to raise awareness of the issue amongst the industry and the general public.

Last update: November 2023

A technician trains several people in how to use an air conditioning system.

Additional information

Proklima – promoting eco-friendly and environmentally sustainable cooling technologies worldwide (

Disposing of ozone- and climate-damaging substances from cooling appliances in an environmentally friendly way (

Using climate-friendly cooling in a warming world

Promoting climate-friendly refrigeration technology in Western and Central Africa (

Reducing emissions in the cooling sector (