|
Soren
|
No need to read 'denialist' blogs (I don't, actually).
Nobody knows why, despite the predictions of melting polar caps, there is more polar ice than expected.
The less salty water idea is one guess. As you say, it's early days. Complex system, many unknown unknowns as well as known unknows and so forth.
Yet we know that it's all human made greenhouse gasses. We can't make accurate predictions based on this theory of AGW but still, the consensus is settled.
This strikes me as a little hasty, when considering the vast uncertainty about any of the details and the inability to make accurate predictions. On the other hand, there is no shortage of 'contrary to expectations' news - see warm-mongers trapped in ice, poley bears not nearing extinction, Himalayan snow not disappearing, sea levels nor rising as fast as predicted - there is some new variable every time predictions refuse to eventuate, there is some new, hitherto unmentioned explanation as to why predictions don't materialise, some new scientific explanation which, inexplicably, did not feature in the models. This less salty water is an excellent example. It is a very basic fact that fresh water freezes before salt water. Yet none of the polar ice melting models devised by scientists seem to have taken it into account and made the prediction that this is how polar ice would increase. Why believe the models when they can't even take into consideration high school science? How reliable are those models? On past form, not very.
It's an endless 'well, would you believe...'
|