[EMAIL PROTECTED] wrote:

> I am not an expert in glacier movement, most people won't be. What I'd
> like off those experts is a clearer statement of what is known, I
> think that a consensus would probably be that there is >90%
> probability of no significant acceleration, 5% of maybe a meter's
> equivalent in a 100 years and <1% of 5m in 50 years, and 0.0000001% or
> something like that for 5 m in 10 years, but I haven't seen this (or
> something like it) stated explicitly anywhere. Nor have I seen
> anything on even how many people are working on the issue.

It's genuinely difficult to get meaningful personal probabilities of 
highly unlikely (but poorly understood) events. Considering it as odds 
on a fair bet gets tangled up with risk-aversion (ie they might prefer 
the unlikelier side even with an expected loss, thus understating the 
odds that they really think are fair).

It's doubly difficult now that many people have learnt how politically 
powerful the "can't rule it out" appeal to risk-aversion can be.

James

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