More Glacier Studies Confirm Roman And Medieval Warm Periods Were Just

[John Adams]

More Glacier Studies Confirm Roman And Medieval Warm Periods Were Just As Warm As Today

Sebastian Lüning and Fritz Vahrenholt:


Everywhere activists and climate alarmists are claiming climate change is happening faster than ever and that the earth is dangerously approaching a tipping point. For example Greenpeace likes to say that the glaciers are actually the “fever thermometers” measuring the health of the planet and that their melting tells the story of inevitable total meltdown. For example in the Alps glaciers have receded by almost a half since the year 1850. Greenpeace writes:


Foremost since the 1990s the rate of melt has increased and is expected to rise over the coming years: Today’s melting is being caused by greenhouse gas emissions from 30 years ago.”


But is glacier melt really something new and unexpected?

Greenpeace uses the Alps as a telltale example. It is precisely there that we want to carry out a fact-check. Firstly one has to wonder why the glacier melt in the Alps began already way back in 1850 – when anthropogenic CO2 couldn’t have played any significant role. This was already determined by geologist Albert Schreiner in 1997 in his textbook “Introduction to Quartiary Geology“ (p. 188, Fig. 91).

One finds even greater factual headaches when going back through the history of the climate for the last several thousand years. Already in earlier articles we wrote that the Alps glacier melted considerably during earlier warm periods.

The melt phases during the Medieval Warm Period 1000 years ago and during the Roman Warm Period 2000 years ago have been well documented (see our blog articles here and here. In April 2014 two more additional papers were published, which impressively confirmed the natural glacier dynamics.

In the Quaternary Science Reviews appeared a paper authored by a team led by Anaëlle Simonneau of the French University Orléans, which reconstructed the glacier movements in the French Alps over the last thousands of years. Here the scientists documented several glacier melt phases, which unsurprisingly included the Roman and Medieval warm periods (Figure1). What follows is an excerpt from the abstract:

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[jst-the-fax]

I posted this chart earlier today in debate of wvit saying the oceans were warming causing the expansion of the water and thus flooding...I guess she didn't expect anyone to come up with this Environmental Protection Agency chart showing the water temps from 1880 to present. What is striking is the spike in temps from 1920 to 1944...then a dramatic drop...then basic flat until now.  When asked to speculate...as to why the 1920-1944 warming period had seemingly no impact on flooding...Ms. wvit has yet to respond with a reasonable hypothesis...?   

[bluespower]

"then (from 1944) basic flat until now".
you are not very perceptive (dim is more like it) in your analysis.
that is not what your graph shows.

-.5 degree f to +.5 degree f temp anomaly = 1 degree f increase from 1944 until now...
and a 1.75 degree f increase from 1910 until now. 

[duke_john]

According to blueballs, it was a catastrophic rise.

[bluespower]

you have proven to me that you are a climate change moron.
i will not seriously pay attention to your climate change opinions.
you have no idea what a "catastrophic rise" in temperature means...or how it impacts climate.
over the past 10000 years of inter glacial warming, a +/- 2 degree centigrade change in temperature is substantial. 

[chuck_curtis]

Viking settlements in Greenland were found buried in what is now permafrost.  If the Vikings had found it like it is today, they could not have settled there.  Yes, it has been warmer on Earth than it is today, and not that long ago.

[bluespower]

Viking settlements in Greenland were found buried in what is now permafrost. &nbsp

Viking settlements in Greenland were found buried in what is now permafrost.  If the Vikings had found it like it is today, they could not have settled there.  Yes, it has been warmer on Earth than it is today, and not that long ago.

If the Vikings had found it like it is today, they could not have settled there.  Yes, it has been warmer on Earth than it is today, and not that long ago.

[bluespower]

If the Vikings had found it like it is today, they could not have settled there.  
not true.

Yes, it has been warmer on Earth than it is today, and not that long ago.

not true...and not that long ago within the last 8000 years.

[duke_john]

Yes, blueballs, it is true.  Now be a good little moron and hide under your bed.

[jst-the-fax]

Apparently neither do you bluespower?