And look at the facts instead of the fiction... man-caused climate change is a fraud. ...Jim Thompson
-- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 |
If we are headed into another mini-ice age, expect mass amnesia among the "scientists".
-- John Larkin Highland Technology, Inc lunatic fringe electronics
after seeing how you respond to actual facts, cry and kick like a baby, I am glad those like you are not hehind the wheel.
Jamie
Not like most of the Trump supporters here are going to be around in
2040 to care very much, one way or the other.
DT got about 30% of the hispanic vote. More than Bush, more than Obama. If he plays it smart, a lot of young people will go his way.
-- John Larkin Highland Technology, Inc lunatic fringe electronics
And put back global climate armageddon by a second or so. If they can exploit their fame to influence a few million people, they can put it back by a few hours. It's a sensible investment.
-- Bill Sloman, Sydney
Jim-out-of-touch-with-reality-Thompson reminds us how he earned his title.
There's now 400ppm of CO2 in the atmosphere - compared with 270ppm from the start of the current interglacial to the beginning of the industrial revolution - and the changing carbon isotope ratios prove that it's all ours.
It has made the global climate about one degree Kelvin warmer - on average - than it was a century ago. The Arctic is warming up a lot faster, because the loss of ice cover up there means that more sunlight is getting absorbed than it used to.
The only fraud going on is being practiced by the denialist propaganda web-sites that gullible twits like John Larkin (and apparently Jim Thompson) treat as if they were honest and reliable.
-- Bill Sloman, Sydney
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Depends what you mean by a mini-ice age. The Medieval cold period was regio nal rather than local
When the Greenland ice sheet finally slides off into the North Atlantic, it may dump enough fresh water to stop the Gulf Stream. The last time this ha ppened, when the Laurentian ice sheet slid off at the end of the last ice a ge, we had the Younger Dryas, which made North America a lot colder for 130
0 years while the rest of the world was moving into the current interglacia l.No group of sceitists would have to develop mass amnesia if that happened a gain.
You might feel the need to learn a bit more about what you are talking abou t, but I doubt it. You do seem to enjoy incorrigible ignorance.
-- Bill Sloman, Sydney
If John Larkin learned anything, he might start posting stuff that was worth reading for anything except amusement.
Donald Trump "playing it smart" and John Larkin learning anything are both rather improbable outcomes.
-- Bill Sloman, Sydney
Since Jamie responds to stuff posted here, he probably isn't blind (though there are Braille displays). His responses do make it clear that he doesn't understand most of what he reads, and that he believes everybody else to be equally handicapped.
-- Bill Sloman, Sydney
The lack of an ice sheet will be disastrous in another way. Everybody knows about "The Gulf Stream" part of the thermohaline circulation. Fewer people think about what happens when all the warm water reaches the north of Norway.
Basically, it cools, sinks and forms something sometimes inaccurately called "The Reverse Gulf Stream".
That cooling is significantly driven by the cold ice sheets; without them the Gulf Stream will move south[1] and might even stop.
[1] There are already some indications that this is happening, but they are far from conclusive.
The loss of ice cover also means that heat is radiated back into space.
Dan
How it's better to have open ocean with a surface albedo of ~0.010 in the best of circumstances, compared to snow-covered ice with a surface albedo of ~0.7 in the worst of circumstances, from a warming perspective, one cannot say.
Fluid flow is one of the great unpredictables of the universe. In electronic packaging, the air never goes where it should obviously go. Like in climate analysis, you're lucky if you know the sign of a causality, much less its magnitude or time profile.
-- John Larkin Highland Technology, Inc lunatic fringe electronics
Just a convenient spot to share....
In this hour-long talk to a convention of Architects, the presenter compares the curve of the warming trend with those of various possible causes.
The albedo of ice and snow changes with wavelength.
The bulk of the energy from the sun is emitted in the near infra-red. The energy emitted by the earth peaks at rather longer wavelengths.
-- Bill Sloman, Sydney
c, it may dump enough fresh water to stop the Gulf Stream. The last time th is happened, when the Laurentian ice sheet slid off at the end of the last ice age, we had the Younger Dryas, which made North America a lot colder fo r 1300 years while the rest of the world was moving into the current interg lacial.
That's why we've got Argo buoys floating around the oceans, measuring what' s going on.
The Gulf Stream is actually fairly predictable, most of the time, and it ha s been measured for quite some time, since Benjamin Franklin discovered it.
It does seem to have recently slowed down by between 15% and 20%
-- Bill Sloman, Sydney
There's a mechanism that makes the poles warm faster than planets as a whole.
It's working in the Artic at the moment, and worked a treat in the Antarctic at the end of the most recent ice age.
-- Bill Sloman, Sydney
Interesting. The Mendenhall glacier in Alaska that has been receding for a while now (probably since the end of the Little Ice Age) and has started to uncover a forest that existed about 1,000 years ago - according to carbon dating.
John
The climate has been more or less stable since the end of the last ice age - in the sense that global average temperature hadn't moved more than 0.4 K until very recently.
but it was clearly perceptibly a little warmer from about 9000 to 5000 years ago.
An ancient forest is evidence of local climate change, and there has been plenty of that. The Sahara was lushly vegetated and populated from from 9000 years ago to 7300 years ago.
It's all about ocean currents and routes for equator to pole heat transport.
The thing to note is that all this was quite small scale stuff, and that jacking up atmospheric CO2 levels from 270ppm to 400ppm is rather more drastic.
-- Bill Sloman, Sydney
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