Hydrochlorofluorocarbons (HCFCs) are enabling the phaseout of CFCs. They are energy-efficient, low-in-toxicity, cost effective and can be used safely. Governments and industry support their global use in applications which meet important environmental and societal needs.
The Parties should continue to support availability and acceptability of HCFCs.
As provided in the Montreal Protocol, developed countries have led the transition, and today total ozone depletion contributions are at their lowest levels since the Parties began discussions.
The following chart shows that ozone depletion potential (ODP) weighted fluorocarbon production by the Alternative Fluorocarbons Environmental Acceptability Study (AFEAS) companies is 90% below peak values in 1988.
The Scientific Assessment Report stated "if emissions of HCFCs were ... totally eliminated by 2004, future chlo rine loading is predicted to be 5% less over the next 50 years." In contrast, a modest 20% increase in CFC production by Article 5 (1) countries "is predicted to be a 9% loading increase." Clearly an HCFC accelerated phaseout or consumption cap reduction undermines the CFC phaseout and is detrimental to society without significant environmental benefit. [ Stratospheric Chlorine Loading Graph ]
Alternatives must meet the technology, safety, toxicology and handling requirements, i.e. functionality, for a given application. Substitutes must be affordable by application, inclusive of the capital costs. This affordability is most frequently determined by the market. Some alternatives are not commercially available or cannot be made available in all areas. Industry will accept only those alternatives which are competitive in the marketplace and are readily available.
The economic viability of an alternative will ultimately determine the fate or acceptability of all substitutes. Widespread acceptance of HCFCs already signifies their applicability to many different markets. They are critical to the transition from CFCs for all Parties.
[ Definition of an Acceptable Alternative ]
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