Re: lack of polar ice caps raised sea level by 650-700 feet....
Hmmm. Lack of an Artic ice sheet would raise global sea level by precisely nothing, as the ice is floating on an ocean that reaches 4000m deep. Nuclear submarines can and do navigate under the ice sheet and pop up at the North Pole, where the ice is now ephemeral, depending on the last time a sub surfaced there.
I did some calculations on the Wikipedia assessment of the amount of ice at the Antarctic, distributed it over the present day oceans and go a figure of around 70m - considerably less than 650-700 feet. Then I did the same for Greenland, and ot about a tenth of the Antarctic total. Elsewhere, the areas and depths of ice don't contribute very much at all.
For those worrying about Greenland, the ice is typically at high altitude, where it's cold, but not so cold as Antarctica, where the average monthly temperatures range from -26 degC to -57 degC, so unlikely to melt any time soon (unless the volcanoes brew up in a major way).
Now, as the average height of continental landmasses is substantially less than the average depth of the oceans, the route to Waterworld is not rising sea level, but sinking continents, or rather less area occupied by them.
There's a lot of loonybollocks talked about rising sea levels, especially by the Climate Change nutters, especially those who don't understand any science at all.
Elsewhere, the year 2000 prediction by climate scientist Dr. David Viner that snow in England is now a thing of the past is being revisited once more. The thing is, if the climate change folk had been correct then Viner would have been proven correct too. At the time that the prediction was made England had gone about ten years without any significant snowfall. The fact that there has been cases of substantial snowfall since then strongly suggests that it is getting colder again.
Re: lack of polar ice caps raised sea level by 650-700 feet....
ReplyDeleteHmmm. Lack of an Artic ice sheet would raise global sea level by precisely nothing, as the ice is floating on an ocean that reaches 4000m deep. Nuclear submarines can and do navigate under the ice sheet and pop up at the North Pole, where the ice is now ephemeral, depending on the last time a sub surfaced there.
I did some calculations on the Wikipedia assessment of the amount of ice at the Antarctic, distributed it over the present day oceans and go a figure of around 70m - considerably less than 650-700 feet. Then I did the same for Greenland, and ot about a tenth of the Antarctic total. Elsewhere, the areas and depths of ice don't contribute very much at all.
For those worrying about Greenland, the ice is typically at high altitude, where it's cold, but not so cold as Antarctica, where the average monthly temperatures range from -26 degC to -57 degC, so unlikely to melt any time soon (unless the volcanoes brew up in a major way).
Now, as the average height of continental landmasses is substantially less than the average depth of the oceans, the route to Waterworld is not rising sea level, but sinking continents, or rather less area occupied by them.
There's a lot of loonybollocks talked about rising sea levels, especially by the Climate Change nutters, especially those who don't understand any science at all.
Elsewhere, the year 2000 prediction by climate scientist Dr. David Viner that snow in England is now a thing of the past is being revisited once more. The thing is, if the climate change folk had been correct then Viner would have been proven correct too. At the time that the prediction was made England had gone about ten years without any significant snowfall. The fact that there has been cases of substantial snowfall since then strongly suggests that it is getting colder again.
ReplyDelete"Hmmm. Lack of an Artic ice sheet would raise global sea level by precisely nothing, as the ice is floating on an ocean that reaches 4000m deep. "
ReplyDeleteLike the JFK 'magic bullet', it seems impervious to facts. I see this one trotted out all the time.
"...snow in England is now a thing of the past is being revisited once more. "
No doubt that gives the Northumbian villages facing another weekend without power thanks to Storm Arwen a chuckle, to keep them warm...