flood watch

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kenneal - lagger
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Post by kenneal - lagger »

johnhemming2 wrote:The problem with predictions on sea levels is that the public sphere in the wider sense (including people who would vote for Trump and Brexit) will not really respond until sea levels are seen to be going up on an annual basis by something that leads to a conclusion of something over 5cm per year (which gives 5m rather than 7m in a century).

Wikipedia gives
https://en.wikipedia.org/wiki/Sea_level ... 0-2013.png

Which is more like 20cm in a century than 7m.

I accept entirely that such things can be non-linear, however.
The more the public and politicians have something drummed into them the more likely they are to take note. My MP has told me that the volume of emails on a subject is what he gauges his action on that subject by. I have had, as I have said, several private comments on that letter which I hope will turn into several more letters. If it makes our MP think about the subject he might realise that building nuclear power stations that are going to be dangerous for about 150 years or more at sea level is not a good idea.

That graph is already showing an exponential trend rather than a linear one and, with feedback mechanisms kicking in, will steepen rapidly, as exponential functions do.

I find it annoying that TV program makers look at the future in terms of the past when the changes that are in the offing, such as sea level rise and population migration, make it obvious to all with even a little bit of imagination that the future faces severe disruptions to what has gone on before. Nicholas Stern, in his book, Why are We Waiting, makes precisely this point about the economic modelling which usually governs our politicians thinking and action. Our economists work on the basis that we will have a linear progression from the past into the future and Stern rails against this stupidity.

Em, please use anything that I post in whatever way you want to get our common message over.
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Post by kenneal - lagger »

There was an item on the BBC News last night about the accelerating melting of the Greenland ice cap. In the past a sudden influx of cold water into the North Atlantic from the melting of an massive ice dam in the Great Lakes area of North America has stopped dead the Gulf Stream plunging Northern Europe into a mini Ice Age in a few decades. Could not this accelerating feed of cold water from Greenland do the same over a longer time scale?

Given that Great Britain is at the same latitude as Hudson Bay in Canada, which freezes solid in winter, that would counteract any temperature increase from Global Warming for quite a few years. This drop in temperature would be as devastating as the projected temperature increase would be but it points to the uncertainty that is Climate Change rather than the certainty of overall Global Warming.

(Edited one time to remove a double not!!)
Last edited by kenneal - lagger on 25 Jul 2017, 16:24, edited 1 time in total.
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Post by emordnilap »

kenneal - lagger wrote:Em, please use anything that I post in whatever way you want to get our common message over.
Thanks, I've stolen a bit already. In trying to discuss 'global warming', most people in these parts facetiously 'want more', so your facts about Hudson Bay are particularly useful.

Once Greenland's ice cap is gone, it'll live up to its name, as people escape floods elsewhere. No doubt they'll find oil and gas beneath them too. And it'll be higher above sea level too, due to the earth rebounding.
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Post by kenneal - lagger »

emordnilap wrote: No doubt they'll find oil and gas beneath them too. And it'll be higher above sea level too, due to the earth rebounding.
That would take several thousand years. Scotland is still rebounding from the last Ice Age. The ice on Greenland is about 2 miles thick and the base is about a mile under water so is will be some time before the land rises above water level although there will be a lot of islands until then.
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Post by adam2 »

Floods in Bangladesh, India, and neighbouring countries are now said to be the worst for many years with significant destruction of crops.
As many as 500 lives are believed to have been lost, and the situation is expected to worsen.
http://www.bbc.co.uk/news/world-asia-40975232

These are regions that flood regularly but not normally to this extent.
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Post by kenneal - lagger »

There only needs to be a few more incidents like this around the globe and there could be a shortage of grain later this year.
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Post by emordnilap »

kenneal - lagger wrote:There only needs to be a few more incidents like this around the globe and there could be a shortage of grain later this year.
Yes. But most definitely no shortage of denial.
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Post by emordnilap »

How climate change is already disrupting lives in Vietnam’s Mekong Delta
Rising sea levels and global temperature increases are causing dramatic droughts and floods in the Mekong region, which are hitting families hard.
Research by the National Ocean Services shows global sea levels rose to a record high in 2016, measuring around 3.25 inches higher than the 1993 average (when sea-level satellite records began).
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Post by kenneal - lagger »

The Mekong is a major food growing area for the whole of Vietnam; indeed all deltas are important to the countries in which they are found. Creeping salination will start to cause problems long before the areas are flooded outright but these deltas throughout the world will gradually be lost and then the worldwide food shortages will strike hard at countries like the UK which are major food importers.

Increasing a country's population in such times is tantamount to suicide; riots, insurrection and large scale death will be the outcome. And I wouldn't be surprised if immigrants didn't bear the brunt of the unrest (Not that I am advocating it, it's just how history has been).
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Post by Potemkin Villager »

To add to all the climate cheer!

https://www.rte.ie/news/2017/0823/89933 ... -flooding/

" It was a weather event not seen here in living memory with 70mm of rain in just a few hours."

That rate of water coming down is impressive by any standards. Thankfully this weather bomb missed us.
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Post by emordnilap »

Mentioned above PV. :wink:

This line though:

"63% of August's average rainfall fell within nine hours".

This is becoming normal - lumpy weather, as SWMBO puts it.

Those pics of the airport. Hmmmm...an airport authority and several car dealers have 'sponsored' weather reports on our local FM station. :lol:
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Post by Potemkin Villager »

emordnilap wrote:Mentioned above PV. :wink:

Those pics of the airport. Hmmmm...an airport authority and several car dealers have 'sponsored' weather reports on our local FM station. :lol:
Rather ironic Derry Airport getting taken down and people bleating on about all the precious fecking shiny new cars, the only thing many seem to have any sort of real emotional relationship with, literally going down the Swanee.

Still there is great comfort in it being described as a "100 year event". Phew, I was getting worried for a minute.....
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Post by emordnilap »

Yeah, we seem to have had a lot of these "once-in-a-hundred-years" events these past few years. :D
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Post by kenneal - lagger »

emordnilap wrote:Yeah, we seem to have had a lot of these "once-in-a-hundred-years" events these past few years. :D
Hopefully we will be alright for the next thousand years then although I doubt it somehow!!
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