New research on sea ice

[Captain Kong]

To raise the Sea levels by One Metre 360,000,000,000, Cubic Metres of water would have to appear, Where From ?????

The amount of water on earth today is exactly the same as it was millions of years ago.

[j.sabourn]

#50... Rodney, Western Australia is already one big sand patch. My house like most is built on sand , the soil has to be put in to suit. Cheers JS

[Keith at Tregenna]

To raise the Sea levels by One Metre 360,000,000,000, Cubic Metres of water would have to appear, Where From ?????

The amount of water on earth today is exactly the same as it was millions of years ago.

Ice melting ?

K.

[happy daze john in oz]

Rodders, I saw that report and am not convinced by it.


One part mentions temperatures taken by NASA from space.
If I am correct NASA has only been around since the late 60's with such equipment.

I am still of the opinion there is more political mileage in this than real threats.

Here in Oz the one way plastic bag is gone, replaced by one you buy at ten times the strength, all to do with the climate we were told.

Maybe economic climate as the supermarkets will by this means cut their costs by some $3 billion per year.

[Keith at Tregenna]

Glad that has been solved.

K.

[Captain Kong]

Ice melting ?
K.
..............................
there is not enough ice and would take many centuries to melt that if there was no more freezing.

the greens see the Arctic and Antarctic in summer with 24 hours a day sun and THEN SHOUT ,. .ITS MELTING.
they never go in Winter with 24 hours darkness with temps way below , I was there in the Antarctic Summer time at Minus 70c.
If you do not believe, then I challenge you to go to the Antarctic and see for your self. Simple.

[Keith at Tregenna]

I just see it that if the experts are wrong, then cleaning up the planet is not a bad thing anyway.

All the evidence seems to indicate that mankind is not looking after the planet in many ways.

If measures are taken now, it may and only may, help to have a better future earth for those still to come.

This generation has not proved to me in anyway that they were or are on the correct path.

Previous thinking will in the future be blamed for the mess.

Lest someone somewhere either acts soon and quickly.

There is to much evidence on much now that should not deter, all
from trying to make this earth a better place.

K.

[Rodney Mills]

Captain Kong Re #56

Extracted from my opening post to this thread. #1

All within the opening and closing quotation marks were extracted from an explanation from a scientific organization's article obtained by Googling your question about sea-ice.

"It should be noted that there are different types of ice. Some ice floats on water and is called sea ice. When it melts, the ocean water level hardly budges because the ice is already in the sea displacing liquid water."...

..."Other ice is on land and may be a large ice sheet or a smaller glacier. These ice bodies sit atop the land and “rest” there. In some cases, they extend out off the land and into the ocean where they partly float on liquid water. When this land ice melts, the liquid flows into the oceans and can cause significant ocean level rising.

So, the importance of ice depends on what type it is, where it is located, and how fast it is melting."...

So in simplistic terms, sea-ice does not change the ocean level but land ice does and glaciers are melting at a rapid rate.

Please Note: The above explanation of sea ice gives an answer to melting ice cubes in gin and tonic not raising the water level. The ice cubes are displacing the water, just in a different form and when they melt onto water it is just occupying the same space as the ice cube. It's land ice melting and entering the oceans, they do not displace they add to ocean levels. Further, ocean levels are not one even level all over the globe, they are variable, caused by prevailing weather, currents, tidal flow, land elevation, etc..


Cheers, Rodney

[vic mcclymont]

From National Geographic, it will air 5000 years for all the earth's ice to melt..
Vic

[Rodney Mills]

Captain.

I have not been to the Antarctic, but I worked and visited Prudeho Bay and in Deadhorse at the very top of the landmass in the Arctic circle.


On visits to our company office in Anchorage prior to going to the North Slope. I would be fully rigged out in survival gear, it weighed many, many pounds. when the plane arrived in Deadhorse, we kitted-up on the plane, the plane taxied to within say a hundred yards of the airport, we vacated the plane and walked to the terminal and I have never been as cold in my life, it was thirty below zero Fahrenheit.


Welders working on the pipeline worked in 15 minuet shifts outside and 45 mins inside a heated mobile cabin. If a driver turned off an engine he was immediately fired as the vehicle was finished, even if that was inside a garage, they ran 24/7. If I was going to a drilling rig, just a hundred yards from the main camp, it was with full survival-gear, plus food and drink, as a white0out could descend at any moment and it was impossible to drive in that condition, you had to sit it out and stay in radio contact.


Are you sure of the 70 degree C, as that is minus 94F. It was not allowed to go out at minus 54F, not for a second, in the high Arctic as exposed skin and eyes freeze and survival gear becomes useless after six minutes.

I have other questions, but I just think you erred on the temperature number mate. I've seen your photos mate and commiserate with you over your tangle with the walrus, so I know you've been to the Antarctic, I just think you may have made a mistake with the numbers.


Cheers, Rodney