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Posted (edited)
7 hours ago, drummindiver said:

?

Are we agreed no reliable model or models re AGW or even CC in general?

your question is too vague to be answered.

Edited by -1=e^ipi
Posted
On 1/20/2017 at 8:39 AM, drummindiver said:

Really? 5 of the coldest years in the Arctic on record have happened since 2010.

I love how you say the ice melt is irreversible when all data show's increase of ice in Antarctic.

2016 hottest year globally since records have been kept.

 

On 1/20/2017 at 8:39 AM, drummindiver said:

Sotry,   one sentence you say there's more ice due to agw. Now there's less again

Less ice in tha arctic, more in the antarctic, both resulted from GW.

Posted
1 hour ago, bush_cheney2004 said:

Wow...a whole 0.75° C....we're all gonna die !

It's actually closer to a degree. 2 is the tipping point. That global stuff is a bit tricky eh.

Posted
1 hour ago, Omni said:

It's actually closer to a degree. 2 is the tipping point. That global stuff is a bit tricky eh.

Of course there is no actual scientific foundation for the 2 degC limit. It is basically a number plucked out the air to meet political objectives.

Posted
2 hours ago, TimG said:

Of course there is no actual scientific foundation for the 2 degC limit. It is basically a number plucked out the air to meet political objectives.

Yes, the 2 degree limit could be too much if you happen to live in some of islands in the Pacific.

Posted (edited)
6 minutes ago, ?Impact said:

Yes, the 2 degree limit could be too much if you happen to live in some of islands in the Pacific.

Pacific atolls rise with sea level. If there are problems it is because local construction choices interfered with the natural geology of the atolls.

But SLR has no relationship to the 2deg fiction. It is just an arbitrary  number plucked out of hat. It is not a "tipping point". 

Edited by TimG
Posted
8 minutes ago, TimG said:

Pacific atolls rise with sea level.

That is a vast mischaracterization of what happens. Yes, more sediment may accumulate on atolls as the sea level rises, but that does not mean it rises. It also does not mean that more sediment will continue to accumulate, just that we have observed some in recent years. The sediment has to be harvested from somewhere.  What is there has not risen. You are also ignoring the many other issues like the storms that have hit the Philippines and other places. I agree that `tipping point` is a misleading term, there needs to be more definition of what can be expected.

Posted
Just now, ?Impact said:

That is a vast mischaracterization of what happens. 

Nope. Atolls take millions of years to form. During that time the sea level has risen and fallen by many meters. Without humans those atolls would certainly rise to deal with any hypothetical rise in sea level. 

Also, the expected SLR in the next 100 years is less than 1 ft in the worst case scenario according to the IPCC. That is not large enough to have a statistically relevant effect on storm surges. More importantly, the even without climate change storms happen and poor countries are not equipped to deal with them. Trying to blame the problems created by too many people with poor infrastructure on climate change is dishonest. Those problems exist with or without climate change.

  • 3 months later...
Posted
On 1/25/2017 at 8:55 PM, -1=e^ipi said:

2 C is not a tipping point.

Agreed, we don't know exactly what the tipping point will be, so let's play Russian Roulette.

"Never trust a man who has not a single redeeming vice". WSC

Posted
2 minutes ago, Omni said:

I guess we won't have an ice age here in Canada since we are missing about 8000 sq. km. of arctic ice.

The root of 8000 is... 90. Doesn't seem like much.

Posted

Valentina Zharkova, a mathematics professor from Northumbria University (UK), presented a model to predict what solar cycles will look and states her model can predict with an accuracy of 97 percent that the  Earth is heading for a “mini ice age” in approximately fifteen years. Zharkova and her team use what is called “principal component analysis” of the earth’s  magnetic field and she predicts that from 2030 to 2040 there will be a significant reduction in solar activity, leading to this so called mini ice age.  Further details are at :

http://www.collective-evolution.com/2016/01/06/researchers-predict-that-a-mini-ice-age-is-coming-very-soon/

However its far more complex then that and here is an explanation why the above is not necessarily accurate and I will summarize like the above article and can be found at:

https://www.skepticalscience.com/heading-into-new-little-ice-age-intermediate.htm

Even if we were to drop to temperature levels that some think will start an ice age referred to as the “Maunder Minimum”, the CO2 levels will greatly outstrip any influence from the Earth’s orbit or solar activity to lower the tempertures to generate a deep freeze.

PLEASE STOP FARTING WHILE READING THIS YOU ARE PART OF THE PROBLEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

According to the above article, just a few centuries ago, the planet experienced a mild ice age, quaintly dubbed the Little Ice Age which is said to have coincided with a period of low solar activity termed the Maunder Minimum (named after astronomer Edward Maunder) and high volcanic activity.

This article says solar activity does show  a long-term cooling trend and apparently in  2009 solar output was at its lowest level in over a century but as this article and many others point out predicting future solar activity is problematic and that is because the transition from a period of 'grand maxima' (the situation in the latter 20th century) to a 'grand minima' (Maunder Minimum conditions required to trigger an ice age) is a chaotic process and so difficult to predict.

The article says If we were to accept that the sun does enter another Maunder Minimum over the 21st  century, simulations run at that low level in fact showed that the decrease in temperature from the sun was minimal compared to the warming from man-made greenhouse gases.  In fact  cooling from the lowered solar output is estimated at around 0.1°C (with a maximum possible value of 0.3°C) but the greenhouse gas warming will be at around 3.7°C to 4.5°C, depending on how much CO2 we emit throughout the 21st century.

So much for any of you who think they can ignore greenhouse emission phenomena.

What makes claims of an ice age also a tad absurd are these global events:

I-on-going degradation of the Arctic permafrost;

ii- on-going and increasing melting of the Arctic sea ice;

iii-the  Greenland ice sheet continuing to lose mass at an accelerating rate;

iv-sizeable data showing continued increase in melting of the ice mases in the Arctic and AntArctic including diminishing ice in the Northwest Paassage;

v-the wide spread epidemic destruction of the world’s coral sea reefs;

vi-rapidly expanding desertification in Africa, Asia, Australia.

Such symptoms are not precursors of an imminent ice age-just the opposite.

Bottom line: all of you stop farting,

Posted
On 1/21/2017 at 10:38 AM, Omni said:

2016 hottest year globally since records have been kept.

 

Less ice in tha arctic, more in the antarctic, both resulted from GW.

Look the sky is falling. Duck. 

Posted
On 5/5/2017 at 4:37 PM, Wilber said:

Agreed, we don't know exactly what the tipping point will be, so let's play Russian Roulette.

When it hits 10C then we can worry about it. 

Posted (edited)
7 minutes ago, Omni said:

So it seems you understand science about as well as politics and law. Where to start?

I read a lot and a lot that I do read about climate change is mostly full of bull. I don't get all up tight like you do over something you know nothing about. If the ice is all melting what can or are you going to do about it anyway? I bet that you won't give up your vehicle or use other transportation or stop using anything that has to do that runs on gas or oil. 

But if you are so concerned where are you going to live to do your part to combat global climate change? Have you got a spot picked out in the bush somewhere? Over. 

Edited by taxme

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