Four Interglacials

10/11/2019 12:05 - Posted by Tom van Leeuwen
This picture is part of a very interesting paper by independent researcher Brian Catt about the effects of magma and volcanism on the ocean heating through glaciation cycles.
The graph of 4 Interglacial Data Sets was created by James Covington.

It shows the temperature for the last four interglacial periods. Each interglacial has it's own color:

  • Red - The Holocene, from 18,000 years ago until today ("We are here...")
  • Green - The Eemian , from 136,000 years ago until 110,000 years ago
  • Blue - Interglacial "MIS 7", from 245,000 years ago until 219,000 years ago
  • Purple - Interglacial "MIS 9", from 343,000 years ago until 317,000 years ago

The depicted periods are long enough to show not only the interglacials themselves but also their onset and decay into the following glacial periods.

The horizontal axis shows the time range for each interglacial in the corresponding color. The vertical axis shows the absolute temperature at the right-hand side and the difference from the current temperature on the left.

The data is obtained from ice cores from Greenland and Antarctica. The names for each source dataset are mentioned in the graph. These are commonly accepted datasets, used by climate scientists as a proxy for average global temperatures.

Observing this graph, the first thing that catches the eye is the large difference, 28 °C, between the coldest episodes of the glacial periods and the warmest peaks of the interglacials. During these fluctuations, life on Earth adapted to the ever-changing climate, improving after every throwback and finally producing our modern society.
Taking this into account, it's clear that the forecasts made by some scientists, bureaucrats, politicians, the mainstream mass media, 16-year olds, your government and the global government about an apocalyptic warming of 2 °C, tipping points, and a runaway -irreversible- warming into Venus-like conditions are a huge exaggeration.

Our current "Global Warming" is the small uptick marked with the "We are here..." arrow. The natural transition from the Little Ice Age into the Current Warm Period is clearly visible. When you take a closer look, all four graphs sport this ongoing zig-zag movement, with three or four peaks every thousand years. The current peak is no different than the rest of the all-natural, zig-zag peaks over the past 300 thousand years. There are lots of sudden, all-natural, warming and cooling periods much more extreme than the current one.

There is nothing "strange" with the current warming; nothing abnormal. The same pattern has been repeating itself over and over again, for natural causes, every 200 to 250 years.

One last observation. The interglacials Eemian and MIS 9 show almost the same temperature progression. The Holocene had a strange start, the so-called Younger Dryas, but started to follow the other two after that period.
MIS 7 starts with exactly the same progression as Eemian and MIS 9, but shows a strange cooling period, possibly due to four violent volcanic eruptions 233,000 to 230,000 years ago: first the Emmons Lake Caldera in today's Alaska, followed by the Reporoa Caldera, Maroa Caldera and Rotorua Caldera on what's now called New-Zealands Northern Island. After that, it's temperature progression catches up with Eemian and MIS 9.
If the Holocene follows the progression of the previous three interglacials, the Earth is due for a gradual cooling of 7 to 9 °C over the next 5 thousand years. The CO2 emitted by human activity might keep the CO2 greenhouse effect saturated for some time, mitigating the process and prolonging the benevolent climate of the Holocene that played a fundamental role in human development.

Tom van Leeuwen, October 11th, 2019.


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The fingerprints of the greenhouse effect

The hypothesis of "man-made climate change" tells us that the increase in the concentration of CO2 enhances the greenhouse effect of the atmosphere and has global warming as a final result.

Since the beginning of the industrialized era around 1850, man emits relatively large amounts of CO2 into the atmosphere through the use of fossil fuels. The consequence of these emissions is that during that period, the concentration of CO2 in the atmosphere increased sharply from about 300 parts per million to more than 400 ppm, an increase of almost 40%. The average temperature increased in the same period more or less 1.5 °C with a small variation depending on the data source used.

Why did the warming stop?

The political reports of the IPCC are based on the hypothesis that CO2 is the most important control knob of the Earth's temperature. The problem is that this hypothesis does not correspond at all with the empirical data available to science. Forecasts are made using models that are not capable of 'predicting' the past.

Temperature versus CO2 – the big picture

When discussing “Climate Change” it’s good to have an understanding of how the Earth’s climate has changed in the past. That will give us a reference to decide whether the current changes are normal or not.

Global temperatures have varied a lot over the last 500 million years. Depending on the timescale used, the current temperature is either cold or hot, so when you want to know the “normal temperature” you’ll have to indicate what timescale you’re using.

Video - Who are the real climate deniers?

The climate has shown many fluctuations during the Holocene. The difference between the highest and lowest average temperature of the past 10 thousand years is about 3 °C.

Climate alarmists, led by the IPCC, are trying to deny this, and understandably so. This variation means that without human influence there was climate change as well.

This undermines their hypotheses and often their jobs depend on it.

Climate change seen from a historical perspective.

Satellite Earth temperature February 2022

The satellite temperature departure measurement for February 2022 is exactly 0° C.

This means that Earth temperature during February 2022 was exactly the same as the average from 1991 to 2020.

Satellites are the best way to have insight into the short-term temperature variations. They measure the whole surface, independent of weather station distribution, Heat Islands, measurement failures, surface condition (land or water).

There is a step-wise increase in temperature, triggered by two very strong El Niño events (1998 and 2016.) The energy that welled up from the deep oceans established a new level in these two ocasions, where the warming paused. This is a natural phenomenon and has nothing to do with CO2, or human activity.

Where is the Climate Emergency? It just does not exist.

Wake up and spread this information to your government!

Tom van Leeuwen, March 1st, 2022.

The H2O greenhouse effect

The IPCC's CO2 hypothesis, with which Western governments try to incite their citizens to group-think, panic and unnecessary measures and taxes, rests in large part on the belief that there is a positive feedback effect between the greenhouse effects of CO2 and water vapor (H2O). A small increase in temperature, caused by the increase in CO2 concentration, would lead to an increase in water vapor concentration and thus increase the H2O greenhouse effect.

This is a misconception. First, positive feedback effects are extremely rare in nature. Furthermore, there is no sensible word to say about the effect that an increase in the H2O greenhouse effect has on the temperature.

Below are three reasons why it is impossible to model this effect.

Rob Jetten, Minister of Climate and Energy

Rob Jetten is the new, brand new Minister of Climate and Energy in the Dutch cabinet Rutte IV.

This is a new ministry, but unfortunately it is characterized by the same ideas as in previous cabinets. The idea that humans, by burning fossil fuels, are responsible for the recent warming of the Earth.


This article is partly based on the thorough research done by Freek van Leeuwen on the scientists Valentina Zharkova and Willie Soon and their work on sunspots.

As we have seen in recent weeks, new research indicates that there is no increased CO2 emissions. global warming, and that only 12% of the increase in atmospheric CO2 concentration is due to human action.

Good news, then, but then the question arises where the heating comes from, which many people feel and which can also be seen in the monthly charts of the satellite measurements.