At the current rate
of sealevel rise of 2.5 mm per annum, it will take about 10,000 years to get to your worst case of 27m.
They snicker amongst themselves at the silly, at least in their geologically defined terms, of the climate scientists and their 0.7 degrees and a 1.7 m
of sealevel datum change.
The IPCC predict 2 feet
of sealevel rise by 2100.
Not exact matches
On page 638
of this issue, Tessler et al. (5) show that
sealevel rise, increasing climate extremes, population growth, and human - induced sinking
of deltas threaten the sustainability
of many major deltas around the world.
Recent studies have proposed that the bathymetric fabric
of the seafloor formed at mid-ocean ridges records rapid (23,000 to 100,000 years) fluctuations in ridge magma supply caused by
sealevel changes that modulate melt production in the underlying mantle.
The global mean temperature rise
of less than 1 degree C in the past century does not seem like much, but it is associated with a winter temperature rise
of 3 to 4 degrees C over most
of the Arctic in the past 20 years, unprecedented loss
of ice from all the tropical glaciers, a decrease
of 15 to 20 % in late summer sea ice extent, rising
sealevel, and a host
of other measured signs
of anomalous and rapid climate change.
It turns out that within about two thousand miles
of the site
of iceloss, the effect on
sealevel is negative.
I keep on wondering how on earth we will be able to accommodate a
sealevel rise
of 8 inches per century in London when our only daily experience is
of a rise 250,000 times faster (14 feet in 6 hours
of incoming tide) in the centre
of the city.
Is
sealevel rise
of 10mm / year a catastrophe?
We've continually accommodated
sealevel rise since the end
of the last Ice Age.
and despite oodles
of academic discussion about this and that and the usual suspects trying to show how clever they are, nobody has been able to come up with any practical reasons why «
sealevel rise» should be on my list
of things to worry about at all.
«not going to support the demolition
of our existing economic system because
of fears over
sealevel rise ``
To give a comparison, why the variability
of a variable is not important at all: the increase or decrease in
sealevel needs some 25 years to statistically separate the few mm change from the meters
of variability caused by waves, tides, storm surges,...
What people commenting here are not aware
of is that the slight steric
sealevel rise and OHC increase has to be compatible with the overall warming.
Finally I note that to get to a rise
of 5 metres by 2100, the
sealevel would need to be rising at an average
of 56 mm / annum.
But if you mean by «global warming» all the crap about renewable energy and
sealevel rise and «acidification» and the end
of civilsation as we know it and 50 million climate refugees and the end
of glaciers by 2035 and hockey sticks and «unprecedented» and drowning polies and the whole tranche
of wacko ideas that have got attached to the simple climatical observation that its a bit warmer than it was in 1912, then I'm very very sceptical and there are is very little reliable evidence for any
of it.
On the clear day in Malaysia you might have 30degC,
sealevel and 80 % RH, which still is only ~ 3 %
of water vapour.
But neither do I think that following policies that will make such a way
of life compulsory for all — in the hope
of avoiding some imagined catastrophe if the winter nights get a degree or so warmer and the
sealevel rises a foot or two — is a sensible course.
Somehow you brought in an interesting old video — where the guy had clearly used a «model» to predict the effect
of higher temperatures on
sealevels.
As the article points out, you can look at other metrics instead - OHC,
sealevel, global glacial mass which have a much lower degree
of internal variability.
We are 23 years in, so by now the relevant
sealevel rise should be 23 / 40ths
of sufficient to drown the WSH.
But if you live a long long way from the sea (like the
sealevel research guys perched high in the Rockies at mile - high Boulder, Co) maybe its easy to get it all out
of proportion and scare oneself stupid.
One
of them is the Ganges Delta where low - lying offshore land is settled, despite government prohibition, because it can be productive and those settlers die in large numbers when typhoons raise the
sealevel.