I've just been reading some articles in the APC Uptime magazine (Schneider Electric) where they describe the use of the refrigerant liquid R134a as "an environmentally friendly pumped refrigerant". Here's a reference to their product.
However if you look up R134a in Wikipedia we are warned it "has been subject to use restrictions due to its contribution to climate change. In the EU, it will be banned as of 2011 in all new cars." Here is more news.
Are APC promoting something that is likely to be banned soon? Will this present the risk of having to write off expensive cooling equipment early in its lifetime?