This concept of Britains and warm beer I have had many a discussion with European 'online friends' (if there is a such thing
).
Simply, British ALE is not the sparkling pale yellow lager that is best served cold, but a dark heavy brew more suited to our cooler climes. There is a huge variety of types and flavours which are monitored by the Campaign For Real Ale (CAMRA).
Dont knock it till you tried it! We still drink the sparkly pale yellow lager stuff cold (although I avoid it like the plague...strangely unless in a hot country where I find it pleasant!).
My favourite real ales are McEwans No.1 Champion Ale, Theakston's Old Peculiar or Pendle Witch.
http://en.wikipedia.org/wiki/Real_ale#Real_ale