How a saviour of the ozone hole became a climate change villain – and how we're going to fix it

HFCs were created to replace ozone-damaging chemicals, but they turned out to be major contributors to climate change

Montreal Protocol leads to healing of Earth’s ozone layer hole

This achievement is majorly due to the Montreal Protocol of 1987 that regulates the consumption and production of nearly 100 human-made chemicals

Negotiations on Montreal protocol one step closer to phasing out HFCs

Slight progress made, much anticipated in the next meeting in July

Reviewing refrigeration standards

There is an urgent need to assess flammable refrigerants with changing technology

Negotiations in Montreal Protocol move at a slow pace

Parties start discussion on core challenges in a more focused way

HFC phase down: what is the relationship between cost and ambition?

Coming to a consensus on the relationship between cost and ambition will be crucial in determining the nature of the HFC phase-down amendment

India decides to put the brakes on HFO in foam sector for now

The government has instead proposed transition to cyclopentane in SMEs

Talks on Montreal Protocol amendment proposals begin

One of the major concerns in the discussion on fixing a baseline or freeze dates is the non-existence of data on HFCs by the developing countries

India asks developed countries to practice what they preach at HFC phase-down amendment negotiations

The five baseline proposals submitted at the talks in Vienna have now come down to two

HFC phase down amendment favourable but not perfect

Questions around financing and acquisition of new generation fluoro-chemicals still remain

Charge size matters

An increase in maximum charge size limits for hydrocarbon refrigerants is needed for effective HFC phase down in India

G7 countries discuss HFC phase down amendment

G7 meeting stresses the need for HFC amendment by the end of this year

Countries to negotiate final HFC phase-down amendment in Rwanda

Parties to the Montreal Protocol are expected to iron out their differences and arrive at a mutually acceptable amendment

Defining High Ambient Temperature crucial to HFC phase-down

A population weighted effective temperature model is being recommended by experts at the 37th Open-Ended Working Group meeting in Geneva

Excluding mobile air conditioning from amendment may solve IPR issue in HFC phase down

Mobile Air Conditioning (MAC) sector is the main source of IPR impediment and accounts for only 8 per cent of global HFC emissions, finds a CSE study

Montreal Protocol talks begin on a positive note in Geneva

Negotiations to phase down HFCs continue from where they were left at in Dubai last year

Montreal Protocol: Some consensus on HFC-related challenges, but solutions still far fetched

From funding to technology assistance for phase out of ozone depleting substances, a lot is being debated

HFC Phase down negotiations to continue in Geneva

Negotiations to focus mainly on HFC phase down and amendment proposals

America's HFC game plan

How the US is gaining support in apportioning of carbon space in the Montreal Protocol with bilateral agreements

The global impact of air conditioning: big and getting bigger

More ACs means more refrigerants that are potent greenhouse gases

Five reasons to believe the HFC talks are headed in the right direction

All is not lost for HFC talks as countries made tangible progress in Paris last week

Factsheet: HFCs - Safe for Ozone, yet a Potent Greenhouse Gas

Montreal Protocol, the multilateral treaty to protect the ozone layer, has been a successful environmental agreement. But animpasse over …

What will be the outcome of scrapping the US Clean Power Plan on its INDC?

Will it be possible for President Barack Obama to maintain his so-called climate legacy?

MOP concludes with hope to bring amendment to phase down HFCs in 2016

Parties succeed in laying a path for the functioning of contact group on the feasibility and ways of managing HFCs in Montreal Protocol.

MOP: Challenges galore, but solutions few

On the second day of the meeting, developing countries raise concerns over the phasing out of HFCs; developed countries show little concern