In uk.sci.weather on Wed, 11 Apr 2007, Philip Eden
wrote :

ObUSW:
12 of the last 13 summers have had a mean temperature
above the 1971-2000 average (as measured by the CET, and,
yes, I know the press release uses a different series, but it's
unlikely to be much different). The last one below was in 1998
and then by only a fraction of a degree. I really don't see much
value, during a warming régime, of using an average period
whose mid-point was 22 years ago to make a point in a
press release. It's as if they want the media to spin it into
"Britain set to swelter through another long hot summer".

Exactly.
--
Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me)