Apr 2015 – Jun 2019

Accelerating momentum towards a global phase down of HFCs (Phase 2)



Multiple countries – Global

To reduce substantially the consumption and production of powerful greenhouse gases known as HFCs (hydrofluorocarbons), through a global agreement to amend the Montreal Protocol and stronger domestic regulation.

$4,713,377 Grant Value

$350,000 evaluation budget

Other funders

  • ClimateWorks Foundation -

  • Pisces Foundation

This investment makes up phase two of our campaign to achieve a rapid global phase down of hydrofluorocarbons (HFCs) through an amendment the Montreal Protocol.

The Institute for Governance and Sustainable Development and the Environmental Investigation Agency are supporting diplomatic efforts aimed at securing global support for an amendment to the Montreal Protocol, as well as efforts to improve energy efficiency and to strengthen national and regional reductions of HFCs. 

HFCs are extremely potent greenhouse gases. One kilo of the average HFC has around 1,600 times the effect on global warming as one kilo of CO2. 

HFCs have been introduced over the last 25 years to replace ozone-depleting substances (such as CFCs) following their successful phase out under the Montreal Protocol. 

HFCs are primarily used in air conditioners, fridges and for making insulating foams.

Since 2009, we have committed more than $26 million to the global phase-down of HFCs

You can learn more about the first phase of this work by clicking here.


Addressing HFCs has the potential to mitigate 100 billion tonnes of carbon dioxide equivalent or more and avoid 0.1C of warming in 2050, and up to 0.5C in 2100. 

We can further avoid the equivalent of 50 billion tons of carbon dioxide if countries avoid moving into HFCs during the phase-out of the current refrigerant, HCFCs. This is called is known as a ‘fast leapfrog phase down.’ 

The video below gives an overview of why HFCs matter and how phasing them down can make a real difference in the fight against climate change.