Tommo21
Tour Winner
My ar$e.
Global warming.
- Thread starter Tommo21
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haplesshacker
Money List Winner
That's the irony of global warming. Chances are it'll eventuall get colder here due to that current that for the life of me I can't remember it's name, failing.
nmartyn
Head Pro
the gulf stream - it runs from the carribean up around cornwall and increases the temp of the uk.
as global warming worsens its making the north atlantic colder and shifting the gulf stream's path. eventually it won't hit the UK and we'll get a drop in the avg temp here.
as global warming worsens its making the north atlantic colder and shifting the gulf stream's path. eventually it won't hit the UK and we'll get a drop in the avg temp here.
forefortheday
Tour Rookie
Thanks for that succinct deconsruction of years of scientific research!
It is a bit chilly out though
Herbie
Tour Winner
Its known as the conveyor, its a constantly flowing system (in natural lifetimes sense though it has stopped before in earths history.)
Warm water flows round the conveyor, when it hits cooler temps it falls and slows due to a combination of salinity and temp, the more salt and colder it is the deeper it falls.
If it stops again the warm water will no longer move around the earth helping to control temp, there are projections that suggest temps could fall on our lattitude by as much as 20* over a number of years, which might just bugger up golf a bit.
Its not just the conveyor that is the issue but thats a basic outline.
Warm water flows round the conveyor, when it hits cooler temps it falls and slows due to a combination of salinity and temp, the more salt and colder it is the deeper it falls.
If it stops again the warm water will no longer move around the earth helping to control temp, there are projections that suggest temps could fall on our lattitude by as much as 20* over a number of years, which might just bugger up golf a bit.
Its not just the conveyor that is the issue but thats a basic outline.
viscount17
Money List Winner
science in a nutshell.
when the gulf stream doesn't flow round UK, we're in an Ice age, so we move south and take over France again.
when the gulf stream does flow we're not in an ice age so we move north again - we're more adventurous than the french.
when it moves a bit you can skate on the Thames as they did in the 14th to 18th centuries, they even walked an elephant across.
when the gulf stream doesn't flow round UK, we're in an Ice age, so we move south and take over France again.
when the gulf stream does flow we're not in an ice age so we move north again - we're more adventurous than the french.
when it moves a bit you can skate on the Thames as they did in the 14th to 18th centuries, they even walked an elephant across.
Herbie
Tour Winner
Priceless Viscount, priceless
mono217
Journeyman Pro
What aload of crap thats what global warming is.
Herbie
Tour Winner
Well it is theorised that crap has something to do with it as well mono, so in a way your right.
Imurg
The Grinder Of Pars (Semi Crocked)
I think the main concern with the Gulf Stream is down to the polar icecaps melting.
If the melt continues, vast quantities of fresh water will be deposited into the sea. This will reduce the salinity of the North Atlantic. This in turn will push the Gulf Stream lower - towards France or even Spain. Don't forget our climate is only the way it is because of the Gulf Stream. The upshot of this is that our climate will become similar to Sweden and Norway or Canada. A lot colder for a lot longer.
I don't think its going to make much difference to us but 100 years in the future could be very interesting.
If the melt continues, vast quantities of fresh water will be deposited into the sea. This will reduce the salinity of the North Atlantic. This in turn will push the Gulf Stream lower - towards France or even Spain. Don't forget our climate is only the way it is because of the Gulf Stream. The upshot of this is that our climate will become similar to Sweden and Norway or Canada. A lot colder for a lot longer.
I don't think its going to make much difference to us but 100 years in the future could be very interesting.
Herbie
Tour Winner
Good post Imurg, Im pleased others are posting good stuff, Ive just covered all this with the kids over the last 4wks and cant be ar**d with detail anymore
madandra
Money List Winner
Explain this to me:
When the ice in my drink melts it doesnt over flow the glass does it. So if the ice melts on the ice caps why will it be a disaster?
Also, have you ever tried melting snow fo make water? You need 180 litres of snow to make one litre of water.
Its just another stealth tax.
When the ice in my drink melts it doesnt over flow the glass does it. So if the ice melts on the ice caps why will it be a disaster?
Also, have you ever tried melting snow fo make water? You need 180 litres of snow to make one litre of water.
Its just another stealth tax.
Imurg
The Grinder Of Pars (Semi Crocked)
But it dilutes the drink Andy, that's the point. Your measure of Scotch is now less Scotch by volume than it was before you put the ice in. And yes I'm sure it takes huge amounts of snow and ice to make a litre of water but the icecaps have quite a big supply of it.
And I'm not going to get political on this but who mentioned anything about a tax? Climate change/Global warming whatever you want to call it is happening. personally I don't think we've done that much to speed it up and I don't think there's much we can do to stop it, its a natural cycle. I'm just trying to explain the science behind it.
vig
Tour Winner
If you piled the ice up in your glass as far out of your drink as the ice caps are out of the sea and sat with the glass on your lap until it melted, it would look like you had a serious incontinence problem.
Herbie
Tour Winner
When the ice in your drink melts it will raise the level minutely in relationship with the ammount of ice that was above the surface, in the same way ice bergs have more than 3/4 of their mass underwater and this displacement will not matter, but the ammount above the water level will,minutely, though this is not the major problem faced, see imurgs earlier post for the big prob.
DCB
Well-known member
Eureka sorted this out when he jumped into his bath didn't he ?
Mass and displacement and all that stuff.
Mass and displacement and all that stuff.
backwoodsman
Tour Winner
Notwithstanding previous replies, not all the ice that's melting is in/on water.
And yes, snow <u>is</u> mainly air, but I think you'll find that polar and glacial ice is just a leeetle bit more compacted... (If you've been melting snow to make your tea, then you'll know it's better to fill the billy with icicles if you can).
nomadpaul
Challenge Tour Pro
There is also the physics involved where when water is frozen into ice , it actually expands . (it's the reason you should never put a fully filled , sealed can/bottle of drink in a freezer...unless it's vodka
) Therefore the volume of ice is actually larger than the water used to make it. As the ice melts , the total volume in the glass will decrease and it will actually LOWER the level of the original liquid+ice level in the glass .
Herbie
Tour Winner
There is also the physics involved where when water is frozen into ice , it actually expands . (it's the reason you should never put a fully filled , sealed can/bottle of drink in a freezer...unless it's vodka
The question should be, does the expansion of the ice below water equal the volume of ice above water level once melted?
Then there is evaporation ????? I dont know which calculous you have used but the level will rise though minutely. If the ice can be reduced with minimum evaporation you would see this as I have in a practical test. Then the evaporation has to come back sooner or later doesnt it?
The simple answer to the global warming question is this, there is a huge ammount of ice, compacted snow and loose snow above water level, should it all melt, this will increase the amount of liquid out there in the oceans and minutely increase water level (nothing we cant handle),but such an increase in volume of freash water (for want of a better description) will reduce the salinity of the water in the oceans which will cause the warmer water circulating the earth to plunge deeper, slow down and force the conveyor to detour around or stop. The detour would be further south and our lattitude would be a bugger!
haplesshacker
Money List Winner
Succintly put Herb. It's not the volume of melt water that's the real issue, but the addition of much colder / fresher water into the system that's the issue.
Whether we are the root cause of 'global warming' is hotly debated. The earths climate is something that's been fluctuating since time began, and that depends if you think the earth is 6000 years old or billions of years old.
It's an interesting topic, and when you consider that it was Maggies Government that poured £££'s into climate change research to quash the coal industry through CO2 emissions damaging the ozone layer, one wonders what the motives are now?
Whether we are the root cause of 'global warming' is hotly debated. The earths climate is something that's been fluctuating since time began, and that depends if you think the earth is 6000 years old or billions of years old.
It's an interesting topic, and when you consider that it was Maggies Government that poured £££'s into climate change research to quash the coal industry through CO2 emissions damaging the ozone layer, one wonders what the motives are now?
