PEER-REVIEWED SCIENCE : The Medieval Warm Period Was Indeed Global And Warmer Than Today

THE Medieval Warm Period - A global Phenomenon - CLIMATISM

The Medieval Warm Period – A Global Phenomenon


No matter if the science of global warming is all phony…
climate change provides the greatest opportunity to
bring about justice and equality in the world
.”
– Christine Stewart,
fmr Canadian Minister of the Environment

We’ve got to ride this global warming issue.
Even if the theory of global warming is wrong,
we will be doing the right thing in terms of
economic and environmental policy.

– Timothy Wirth,
President UN Foundation

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WHEN prosecuting the case for “unprecedented” man-made Global Warming, the first thing you need to make sure of is that no recent climate era was as warm or warmer than the present, even if that means having to rewrite the past to fit your narrative.

THE Medieval Warm Period, also known as the Medieval Climate Optimum (due to conditions favoured for crops, life and civilisation to thrive) existed a short time ago in the climate record, from c. 950 to c. 1250., and has remained a thorn in the side, ever since, for today’s Global Warming Climate Change activist movement.

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IN the 1990 IPCC report, the Medieval Warm Period was much warmer than the late 19th century:

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THE IPCC’s 1990 report dives deeper into the reality of the Medieval Warm Period and provides an insight into the cause of these warming periods:

“This period of widespread warmth is notable in that there is no evidence that it was accompanied by an increase of greenhouse gases.

IPCC WG1 Report 1990 (p202)

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BY the 2001 IPCC report, the Medieval Warm period disappeared and became much cooler than the late 20th century:

hockeystick

Mikey Mann Hockeystick

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BY pure coincidence, in the year 1995 the IPCC made a decision to make the Medieval Warm Period disappear:

David Deming Senate Testimony

David Deming Senate Testimony

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YOUTUBE clip of Dr David Deming’s US Senate testimony on the “disappearance” of the Medieval Warm Period (see 01m:50s) :

Video of Dr David Deming’s statement to the U.S. Senate Committee on Environment & Public Works on December 6, 2006. Dr Deming reveals that in 1995 a leading scientist emailed him saying “We have to get rid of the Medieval Warm Period”. A few years later, Michael Mann and the IPCC did just that by publishing the now throughly discredited hockey stick graph.

IN case you missed it…

“I had another interesting experience around the time my paper in Science was published. I received an astonishing email from a major researcher in the area of climate change. He said, “We have to get rid of the Medieval Warm Period.””

The existence of the MWP had been recognized in the scientific literature for decades. But now it was a major embarrassment to those maintaining that the 20th century warming was truly anomalous. It had to be “gotten rid of.””

Statement of Dr. David Deming | U.S. Senate Committee

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THE MEDIEVAL WARM PERIOD : GLOBAL and PEER REVIEWED

ACCORDING to multiple lines of “peer-reviewed science”, the Medieval Warm Period was indeed ‘global’ and was as warm, if not warmer than today.

CLICK here for excellent interactive map of clickable peer-reviewed MWP studies in both North and Southern Hemispheres :

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THE ‘INCONVENIENT’ PAST

THERE is absolutely nothing unusual about today’s so-called Global Warming aka Climate Change.

LOOK at how many periods of warmth our planet has enjoyed during the past 10,000 years alone.

CIVILISATIONS flourished during those warm periods (“climate optimums”), and collapsed when they ended.

DID humans cause the Minoan warm period of about 3,300 years ago?

DID humans cause the Roman warm period of about 2,100 years ago?

DID humans cause the Medieval warm period of about 1,000 years ago?

WHAT about all of those other warm periods? Should we blame Fred Flintstone, perhaps?

greenland-ice-core-proxy

via @BigJoeBastardi | Twitter

IF the downward trend in temperature of the past 3,300 years continues, we could be in a heap of trouble. While our leaders keep on wringing their collective hands over global warming, we could be blindsided by an ice age.

ALL this talk about human-caused global warming is sheer nonsense, if not downright fraud. The record shows that both periods of warmth – and periods of cold – hit our planet with almost consistent regularity.

* Read the rest of this entry »


THE SUN : Climate Changer, Climate Driver, Climate Disruptor

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LAST week we analysed the profound effect that the Sun has on Earth’s climate and the sinister reasons as to why the Climate Crisis Industry almost completely dismisses it as having any effect on climate and weather:

THE SUN : Climate Control Knob, Enemy Of The Climate Cult | Climatism

THROUGH the forensic lens of Tony Heller’s excellent research, let’s take a deeper dive into the ‘conveniently’ dismissed nuclear-powered giant in the sky that has the ability to generate temperature swings of 40 degrees centigrade on any given day. And whose light, that takes 8 minutes and 20 seconds to reach Earth, delivers enough energy in one hour to power the world economy for an entire year! Read the rest of this entry »


GREENLAND No Warmer Now Than The 1880s 🇬🇱

NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

h/t NoTricksZone

As I have shown many times, data from long running stations show that temperatures recently in Greenland have been no higher than the 1930s.

A new paper, which uses Reanalysis data from KNMI, pushes the record back further.

image

https://www.the-cryosphere.net/12/39/2018/tc-12-39-2018-supplement.pdf

As we can see, Greenland temperatures were also at a similar level to now as long ago as the 1880s.

Indeed, it is noticeable that the really anomalous period was that extremely cold interval, which began in the 1950s and lasted till the 1990s.

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Climate Revisionism 101 : “We Have To Get Rid Of The Medieval Warm Period”

WHEN you are a man-made global warming alarmist prosecuting your case as “unprecedented”, you need to make sure that no recent climate era was as warm or warmer than the present, even if that means having to rewrite the past to fit your theory.

THE Medieval Warm Period, also known as the Medieval Climate Optimum (for obvious reasons) existed a short time ago in the climate record, from c. 950 to c. 1250., and has remained a thorn in the side for modern “global warming” catastrophists…

Read the rest of this entry »


HOTTEST Arctic Ever? Arctic Climate Change Fairytales vs. Reality

EXCELLENT piece by our friend and environmental scientist Vijay Jayaraj on the recent mass hysteria over the supposed “hottest day evah” in the Arctic.

Vijay’s piece, featured in Town Hall, demonstrates how the Climate Crisis Industry will latch on to any daily (hot) weather event in order to push their CAGW agenda yelling “GLOBAL WARMING” without any consideration for historical reference or indeed common sense…

“Those who count the Arctic warmth as evidence for global warming should count the Eurasian [cold] as evidence for global cooling”


Vijay Jayaraj
Vijay Jayaraj | Posted: Mar 06, 2018 12:01 AM

This week, social media and mainstream media were abuzz with news about the record Arctic heat and how we humans are destroying our planet through climate change.

While we brace for a barrage of climate doomsday news, here is the actual reality of climatic conditions at the Arctic and reasons why we are not in imminent danger.

On 26 February, temperatures in some regions of the Arctic hovered around the freezing point (zero degree Celsius)—a record high for this time of year in the satellite era temperature readings (which began in the late 1970s).

But the current rise in Arctic temperature is due not to changes in global average temperature but to changes in regional weather patterns. Changes in the weather system across the Scandinavian region are pushing very warm, moisture-laden Atlantic air into the Arctic and very cold Arctic air into Northern Eurasia, leading much of Europe into a deep freeze this week.

(Those who count the Arctic warmth as evidence for global warming should count the Eurasian code [cold] as evidence for global cooling.)

The same has been prevalent over North America this week, resulting in a colder than normal winter in some parts while temperatures soar towards the east coast.

To understand the sudden peak in arctic temperatures, it is critical to analyze two key elements associated with the Arctic climate: 1. past temperature trends, and 2. the historic variations of the sea ice cover in the Arctic.

Temperature records for the Arctic reveal that the current rise in temperature is not unusual.

The weighted Arctic (70–90oN) monthly surface air temperature anomalies (from HadCRUT4) show that average surface temperatures in the Arctic have not increased significantly since the 1930s.

Long-term (1880–2018) Arctic surface annual air temperature series from Nuuk, Greenland, show that the high temperatures in the recent years are not significantly higher than the previous 14 decades.

Climate alarmists argue that these high temperatures lead to extreme reduction in sea ice levels and upset the eco-system of the planet.

However, sea ice variations reveal a similar pattern to that of temperature—there has been no extreme reduction of sea ice in recent decades.

The latest studies on Arctic sea ice indicate that sea ice cover during the 20th century did not depart significantly from the record sea ice levels during the Little Ice Age (1600–1700 AD).

And understandably, the sea ice cover was at its 2000-year low during the Medieval Warm Period (1000-1200 AD) and during the Roman Warm Period (around 0 AD).

If one were to consider longer temperature data series, such as the entire Holocene (the warm climatic era that constitutes the last 11,700 years approximately), we have no reason to panic about sea ice cover.

Sea ice cover in the 20th century was at its highest ever (excluding the Little Ice Age of 16thcentury) in the last 11,000 years.

Solar activity, and not carbon dioxide, was found to be the main reason for changes in the historical sea ice variations.

The current sea ice loss is not extraordinary by any means, and the Arctic ecosystem survived through much lower ice cover extent in the past 2000 years.

Lying about sea ice and temperatures is not new for the climate alarmists, and their hypocrisy will surely reach new heights this spring.

Vijay Jayaraj (M.Sc., Environmental Science, University of East Anglia, England), Research Associate for Developing Countries for the Cornwall Alliance for the Stewardship of Creation, lives in Coimbatore, India.

Hottest Arctic Ever? Arctic Climate Change Fairytales vs. Reality – Vijay Jayaraj |Town Hall

(Climatism bolds)

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MEANWHILE, as the climate mafia bloviates inside their WEATHER = CLIMATE bubble, the other conveniently forgotten pole, Antarctica, continues its long 40 year+ cooling trend, gaining ice mass despite record and rising CO2 levels and claims of The Hottest Years Evah

Screen Shot 2018-03-01 at 5.24.35 am.png

From the abstract:

Mass changes of the Antarctic ice sheet impact sea-level rise as climate changes, but recent rates have been uncertain. Ice, Cloud and land Elevation Satellite (ICESat) data (2003–08) show mass gains from snow accumulation exceeded discharge losses by 82 ± 25 Gt a−1, reducing global sea-level rise by 0.23 mm a−1.

Mass gains of the Antarctic ice sheet exceed losses | Journal of Glaciology | Cambridge Core

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DON’T MENTION THE SUN!

“The role of the lowest solar cycle for at least a century is mostly ignored by believers in man-made global warming. There are signs of climate change, but not necessarily the kind they expect.” – Rog Tallbloke

Icy Europe, balmy North Pole: the world upside down | Tallbloke’s Talkshop

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Related :

Climate Science related :


MUST WATCH : Mark Steyn – The Fraudulent Hockey Stick

“As we all know, this isn’t about truth at all, its about plausibly deniable accusations.”

Michael E. Mann | Climategate Emails

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steyn-e1416866385339

Be sure to put aside 30 minutes in your day to watch this unparalleled hockey-stick of laughs from the brilliant Mark Steyn, speaking on the ‘fraudulent’ Hockey Stick at the 10th ICCC conference.

Mark Steyn – The Fraudulent Hockey Stick – 10th ICCC via Canadian Climate Guy :

Cuts to the bone, and funny as hell too!

The ebullient Mark Steyn is being sued by self-styled ‘Climate Scientist’ (really a plain Geologist) Michael Mann for pointing out the truth of Mann’s perversion of science and his invention of a new climate history with his dodgy ‘Hockey Stick’.

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UPDATE Mann vs Steyn :

See Also :

Mikey Related :

 

Peer Review studies that show the Medieval Warm Period was global and warmer than present :

Richard Mueller’s classic smackdown of Mann’s “hide the Decline” :

mannmade hockeystick


Before Little Mikey Corrupted The Science

 

Real Science

From the first IPCC report

There is growing evidence that worldwide temperatures were higher than at present during the mid-Holocene (especially 5 000-6 000 BP), at least in summer, though carbon dioxide levels appear to have been quite similar to those of the pre-industrial era at this time (Section 1 i Thus parts were a few degrees warmer in July during the mid- Holocene than in recent decades (Yoshino and Urushibara, 1978, Webb ct al 1987, Huntley and Prentice, 1988, Zhang and Wang 1990) Parts of Australasia and Chile were also warmer. The late tenth to early thirteenth centuries (about AD 950-1250) appear to have been exceptionally warm in western Europe, Iceland and Greenland (Alexandre 1987, Lamb, 1988) This period is known as the Medieval Climatic Optimum China was, however, cold at this time (mainly in winter) but South Japan was warm (Yoshino, 1978) This period of widespread warmth is…

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