Polar Bears Did Fine When Arctic Had No Ice

[Old Rocks]

You lie. Show us a single instance prior to the Industrial Revolution in which temperatures have risen as quickly as they have in the last century. You say there have been many. Let's see ONE. In particular, let's see one in the last 200,000 years.

Poor cricky, you really don't know anything do you? For shame...


The most spectacular aspect of the YD is that it ended extremely abruptly (around 11,600 years ago), and although the date cannot be known exactly, it is estimated from the annually-banded Greenland ice-core that the annual-mean temperature increased by as much as 10°C in 10 years.


Two examples of abrupt climate change

Exactly.

Quaternary extinction event - Wikipedia, the free encyclopedia

The Late Pleistocene extinction event saw the extinction of many mammals weighing more than 40 kg.

• In North America around 33 of 45 genera of large mammals became extinct.
• In South America 46 of 58
• In Australia 15 of 16
• In Europe 7 of 23
• In Subsaharan Africa only 2 of 44

The extinctions in the Americas entailed the elimination of all the larger (over 100 kg) mammalian species of South American origin, including those that had migrated north in theGreat American Interchange. Only in North America, South America, and Australia, did the extinction occur at family taxonomic levels or higher.

Both going into the YD, and coming out, there were extinction events. Adrupt climate changes are not pleasant. Problem is, for going in, and coming out, we don't know what tipped the climate to change that adruptly. And we don't know if we are setting ourselves up for something similiar today. And we won't know until it is hindsight.

10C in TEN years. You claimed that it doesn't happen. You claimed that this time is the only time it has ever happened. So, were you just plain old ignorant or were you lying?

Are you speaking to me? And if you are, just where did I make a claim as to the number of degrees in a certain number of years. There was a very fast change at the beginning of the YD and at the end of the YD. I have seen various claims for the temperature ranging from 4 to 10 degrees in a decade to much longer. Doesn't matter that much, it was very rapid, and the results for the North American mammals were catastrophic.

And this is the only time that happened with those results. Otherwise the mammals that went extinct then would already have been extinct. And the fact that there were extinctions on both ends points out that the main factor was the rapidity of the changes, far more than the direction in which those changes went.

 

[Old Rocks]

Fantasy

Although the start of the Younger Dryas is regarded to be synchronous across the North Atlantic region, recent research concluded that the start of the Younger Dryas might be time-trangressive even within this region. After an examination of laminated varve sequences, Muschitiello and Wohlfarth found that the environmental changes that define the beginning of the Younger Dryas are diachronous in their time of occurrence according to latitude. According to these changes, the Younger Dryas occurred as early as c. 12,900–13,100 calendar years ago along latitude 56–54°N. Further north, they found that these changes occurred at c. 12,600–12,750 calendar years ago.[31]

That's 500 years dude.

And completely regional.

You silly people claim that the MWP was regional too. However every time it is looked for it is found everywhere. So your claims are crap.

Why yes, we do find that there are evidences of the MWP everywhere. But by the article that you posted concerning the evidences for it in the Indian Ocean sediments, when you average the very minor changes in places like that, you get far less warming than at present.

 

[westwall]

Fantasy

Although the start of the Younger Dryas is regarded to be synchronous across the North Atlantic region, recent research concluded that the start of the Younger Dryas might be time-trangressive even within this region. After an examination of laminated varve sequences, Muschitiello and Wohlfarth found that the environmental changes that define the beginning of the Younger Dryas are diachronous in their time of occurrence according to latitude. According to these changes, the Younger Dryas occurred as early as c. 12,900–13,100 calendar years ago along latitude 56–54°N. Further north, they found that these changes occurred at c. 12,600–12,750 calendar years ago.[31]

That's 500 years dude.

And completely regional.

You silly people claim that the MWP was regional too. However every time it is looked for it is found everywhere. So your claims are crap.

Why yes, we do find that there are evidences of the MWP everywhere. But by the article that you posted concerning the evidences for it in the Indian Ocean sediments, when you average the very minor changes in places like that, you get far less warming than at present.

Nope. You get a large temp increase at the poles and a small increase at the equator. Here in the Sierra Nevada Mountains the increase was 2.7 C. Well documented.

 

[Crick]

Have you forgotten what the word "average" means?

 

[westwall]

Have you forgotten what the word "average" means?

Nope. But you sheep have. According to you every warmish day is evidence of GW and yet they are all nothing unusual.

 

[Billy_Bob]

Have you forgotten what the word "average" means?

Average = Adjusted crap provided by alarmists who dont know what the true meaning of true science is..

I watched a show on the end days yesterday (The Seven New Signs of the Apocalypse) featuring Michale Mann and whole slew of other alarmists trying to make claims that the sea level rise will be in hundreds of feet.. I couldn't stop laughing at the lies old Mann, Karl, and others along with his propaganda folks of the history channel were spewing.. Trying to tie Man Made Global Warming and religions prophecies together with their exaggerations and deceptions.. Dam if the regions they touted as having 1 foot sea level rise today in NY and Florida were due to land subsidence and not actual sea level rise.. A blatant lie and deception that they know is a lie, yet they told it anyway.. How many sheep will believe these lies and not check them out?

The fact they were using a religious tie, reveals that this is totally religious faith by design and not based on science... Too dam Funny! Appeal to authority and now religious authority with this propagandist piece made in late 2015....

 

[Crick]

Do you believe that Mann and Karl knowingly cooperated with a production looking to find signs of Biblical prophecy in climate change? Really?

 

[C_Clayton_Jones]

"Polar Bears Did Fine When Arctic Had No Ice"

The stupidity of this speaks for itself.