Greenpeace challenges "green grocer" on CFC substitutes

Sainsbury's has been made the target of a new Greenpeace campaign against the use of fluorocarbons as CFC substitutes in retail refrigeration applications. Hotly contested technical issues have been raised by the group's claim that ammonia is an acceptable substitute. The campaign is of critical importance to fluorocarbon producers such as ICI and Du Pont who fear that it may erode projected sales of CFC substitutes in which they have invested heavily.

The Greenpeace campaign has turned the spotlight on a sector which has made little progress in phasing out ozone-depleting substances. In 1986, it used 3,700 tonnes of CFC refrigerants, or just over 5% of total UK consumption. By 1991, the figure had declined by only 450 tonnes, and because most other sectors had achieved larger reductions the retail industry's share of UK consumption had risen to almost 20%. Most of its purchases were used to

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