Off topic. Bring it here.

[Vinty]

You act as if you are one of the worlds foremost experts in climatology, atmospheric science etc, so why dont you explain how they are related?

AFAIK climate is long term and weather is what you see when you look out of your window every morning.

 

[Vinty]

Hardly anybody really understands global temperature and climate change, and that includes the climatologists. Most good ones will tell you that. Part of the problem is dramatic statements made in the past have not come to fruition, and that fuels the non-believers into thinking it doesn't exist at all. Thirty years ago it was predicted that global average temperature would increase by 2 degrees within 20 years. In fact it increased by 0.2 degrees. A big error. Much of the problem is how and what is measured. People get confused between air temperature, surface temperature, sea temperature, sea temperature at depth, very deep sea temperature, and so on.

Weather people always dismiss cold spells which, to non-believers, is having your cake and eating it. You can't say 'global warming' when it's uncharacteristically hot and then say, ahh, that's different, that's the weather', when it's uncharacteristically cold. For 12 or 15 years in the early noughties the average global temperature stayed steady. Hardly any increase at all. The reason is unclear? probably just due to poorly understood vagaries of the global system. But this is a problem because for years climatologists drummed it into us that global warming was a direct response to C02 and because C02 was rising off the scale then temperature would rise with it. But it didn't, and that is more fuel to the non-believers. Ask most people what percentage of C02 in the atmosphere is caused by humans, most will say something like; 50%, 75%, 80%, etc. The vast majority will be above 50%. In fact it's less than 5%. At times lower than 2.5%.

Rising sea levels also a problem. Thirty years ago the Aussies were concerned about rising sea levels so much they set up a monitoring system across Australia and several surrounding islands. Thirty years later dramatic rising sea levels haven't materialised. A report about ten years ago said they detected barely any rise at all. The report didn't say so but it sounded like they were scratching their heads. Meanwhile, some South Pacific islands have virtually disappeared, but it's the Aussie no-show that is fuel for the non-believers.

So the problem with climate change is really about information and how it's presented. Years ago we were told the red light on your telly is causing climate change. It wasn't difficult to think that's a load of rubbish and bin all climate change theories along with it. These days you've got Greta sailing around the World in her yacht telling us we're all going to die if we don't stop travelling. That should do the trick.

I read that it is very difficult to measure sea levels because some countries are rising while others are sinking.
GB for example is supposed to be rising at one end while sinking at the other.

 

[jeds]

Sea levels are interesting. Also very difficult to do accurately. The method used at Newlyn has been upgraded due to technology several times - each time the new method produced a different pattern of results. It took six years to get the mean level which was used for the National ordnance survey. I understand average global sea level has risen about 240mm since 1900. But in 1900 the level was at the lowest it had been for about 400 or 500 years so the true increase since 1900 is probably more like half that amount.

Don't ask me how anybody has any idea whatsoever what the average global sea level was in 1500?

 

[Vinty]

Apparently Scotland is rising and Southern England is sinking.
Could be due to too many people at one end of the country.

 

[Bodd]

Apparently Scotland is rising and Southern England is sinking.
Could be due to too many people at one end of the country.

Thats why I voted Brexit

 

[jeds]

There are areas of Scottish coast with ancient pebble beaches on top of the sea cliffs, 20m above sea level. The reason is that Scotland was depressed by ice during the ice age and since the ice receded the land has been recovering. Still is apparently.

 

[JohnD]

Scotland going up, South Coast going down, as GB tilts and rebalances itself.

 

[JohnD]

Sea levels are interesting. Also very difficult to do accurately. The method used at Newlyn has been upgraded due to technology several times - each time the new method produced a different pattern of results. It took six years to get the mean level which was used for the National ordnance survey. I understand average global sea level has risen about 240mm since 1900. But in 1900 the level was at the lowest it had been for about 400 or 500 years so the true increase since 1900 is probably more like half that amount.

Don't ask me how anybody has any idea whatsoever what the average global sea level was in 1500?

But there are records of water level along the Thames, especially the London bridges.

 

[Bodd]

If you like Chilli and you like Marmite.... you might like this...

Dynamite Marmite Yeast Extract with Chilli 250g Limited Edition https://g.co/kgs/B8Jzkf

 

[Captain Nemesis]

If you like Chilli

Yes.

and you like Marmite

Its the Devils smegma.

 

[mitch66]

AFAIK climate is long term and weather is what you see when you look out of your window every morning.

Apparently the earth is 4.543 billion years old. It has had ice ages, hot ages, back and forth for millions and millions of years. Strangely, according to some, humans took over being cause of this about a 100 years ago or so.
I wonder what caused it before us chaps discovered a bit of coal, got the occasional BMW and became responsible for climate change??

 

[Captain Nemesis]

Strangely, according to some, humans took over being cause of this about a 100 years ago or so.

According to a enormous number of people who know what they are talking about, not "some".

What is your claim to expertise?

 

[jeds]

But there are records of water level along the Thames, especially the London bridges.

Doesn't tell you anything about global sea levels.

 

[JohnD]

the thames is tidal, up to Teddington.

what do you think the Thames Barrage is for?

 

[mitch66]

According to a enormous number of people who know what they are talking about, not "some".

What is your claim to expertise?

None. What's yours? Can you tell me what caused all the massive climate change for billions of years before humans burnt fossil fuels? Before humans in fact. Can you also tell me why this apparently stopped just a hundred years ago or so and is now due to human activity? Do you honestly think climate change can be halted by human change?