Norman Lynagh wrote:

On this programme a few minutes ago David Attenborough said that sea
temperature over the Australian Great Barrier Reef are much higher than
normal this year. The present temperature anomaly maps don't agree with
this. For example see

http://www.weatherzone.com.au/charts...SSTAnomaly.jsp

Overall, an interesting programme but I worry about the number of
scientists that appear on such programmes making very positive
pronouncements that certain changes "will" occur as a result of global
warming rather than "may" occur. Nothing is certain until after it has
occurred. And what about the inevitable changes that no-one has even
thought about yet. Have the very complex feed-back loops been adequately
modelled. I am no expert on this but it's such a complex subject that I
find it very difficult to believe that the modelling is free from
significant flaws.

Norman.
(delete "thisbit" twice to e-mail)
--
Norman Lynagh Weather Consultancy
Chalfont St Giles 85m a.s.l.
England


Most fishermen rely on sea temperatures to gauge the location of
fish,the mackeral fisheries of Tasmania went from the purse seining
method (cold surface temps) to midwater or bottom trawling as the
surface temperatures increased hence the fish relocated to deeper and
colder depths.

Fishermen need no convincing that climate imbalances exist due to the
appearance of certain species of fish at unusual times of the year,for
instance bluefish on the NY offshore grounds in March or earlier.I
remember only the surprise of the skipper and his prescient comments at
the time.