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THE CHATTER BOX

 
  
  
  The Chatter Box : Blathering On
  
  
  
 
Messages 1 2 

The next Ice Age ... by Ken Dunn on 23 December 2010 6:29pm
 
... has started in Scotland?
 
Re: The next Ice Age ... by Ken Dunn on 23 December 2010 6:39pm
 
I saw a geology programme about rocks and stuff and one of the premises was that when the elliptical orbit of the earth round the sun becomes too skewed the winters become more severe and there comes a time when the earth's natural seasons cannot recover. Are there any astronomers out there who could give us an insight into the skewedness of the earth's orbit today?

There are some asteroids which whizz past occasionally and I'm wondering if any of the recent ones were big enough to put a skew on the orbit temporarily.
 
Re: The next Ice Age ... by Lounge Trekker on 23 December 2010 7:21pm
 
(edited 12;45 pm Pacific)

I'll make sure I have a heavy blanket in the truck just in case I'm out longer
than I expected. You are over 5 degrees north of us but I like to be prepared.

Now you got me looking. Does this guy know what he's talking about? http://www.hol.com/~johnboy/orbitalV.htg/variance.htm#thousand_words

Chilly Trekker
 
Re: The next Ice Age ... by Ken Dunn on 24 December 2010 12:16am
 
I disagree with the spiral orbit theory although Milankovitch was the theorist mentioned in the geology programme.

The reason I disagree with the spiral orbit theory is because they were unable to measure the earth's distance from the sun accurately until relatively recently.

I wonder if rather than causing the 'greenhouse effect' the carbon particles in the atmosphere are stopping the sun's heat getting to ground level - just like clouds do.
 
Re: The next Ice Age ... by tucsonmike on 24 December 2010 12:36am
 
Does this mean we will return to being Neanderthals living in caves?
 
Re: The next Ice Age ... by Ken Dunn on 24 December 2010 12:42am
 
No, I think we should stick to our houses as they are much warmer and some have gas and/or electricity to help with heating.
 
Re: The next Ice Age ... by Ken Dunn on 26 December 2010 4:56am
 
... is maybe easing a bit.
 
Re: The next Ice Age ... by Ken Dunn on 26 December 2010 10:34pm
 
... is still easing but eastern USA is having heavy snow.
 
Re: The next Ice Age ... by Ken Dunn on 28 December 2010 9:43am
 
We can see some grass in our back garden today, the first since about five weeks ago.
 
Re: The next Ice Age ... by ev on 28 December 2010 12:23pm
 
Ken Dunn:"I wonder if rather than causing the 'greenhouse effect' the carbon particles in the atmosphere are stopping the sun's heat getting to ground level - just like clouds do."

Here's a documentary about this 'global dimming' effect.. one scientist even measured the temperatures over the USA when all the planes were grounded after 9/11, and found that the pollution from planes alone created an average difference of 1°C..

http://freedocumentaries.org/int.php?filmID=254

 
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