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The standard allows for hydrocarbons, which are flammable, being used as a refrigerant in certain circumstances instead of the usual hydrofluorocarbons, which are inert.
What recent representations he has received on the use of hydrofluorocarbons at the millennium dome.
Only very small amounts of hydrofluorocarbons would have been purchased since 1995.
Information on the amounts of hydrofluorocarbons purchased since 1995 is not collected in the form requested.
It is anticipated that all equipment using hydrofluorocarbons will be replaced by equipment using more acceptable refrigerants within the present deadline.
The voluntary policy on reducing leakage of hydrofluorocarbons has had a positive impact in terms of raising awareness.
The policy also states that hydrofluorocarbons should only be used where other safe, technically feasible, cost effective and environmentally acceptable alternatives do not exist.
These estimates are based in part on assumptions about charges and leakage rates of hydrofluorocarbons from refrigeration systems in nine different refrigeration and air conditioning sectors.
In all, the current legislation encourages a reduction in emissions of 25 fluorinated gases – hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride – through containment, responsible use, recovery, destruction and disposal.
We also use and permit the emission of gases, such as the refrigerant hydrofluorocarbons, that can absorb more than 3,000 times as much infrared radiation per mol as carbon dioxide.
The industry is dominated by hydrofluorocarbon interests.
Several other primary gases also include methane, nitrous oxide, sulfur hexafluoride, perfluorocarbons, and hydrofluorocarbons.
With the development of the chlorofluorocarbons (along with the succeeding hydrochlorofluorocarbons and hydrofluorocarbons), that came to replace the use of toxic ammonia gas, the refrigerator replaced the icebox.
The protocol, if ratified, would commit nations to roll back emissions of six greenhouse gases (carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride) below 1990 levels.
