Ice Age every 100,000 years?

This mysterious phenomenon, dubbed the ‘100,000 year problem’, has been occurring for the past million years or so and leads to vast ice sheets covering North America, Europe and Asia. Up until now, scientists have been unable to explain why this happens.

Ice Age every 100000 yearsExperts from Cardiff University have offered up an explanation as to why our planet began to move in and out of ice age every 100,000 years.

Our planet’s ice ages used to occur at intervals of every 40,000 years, which made sense to scientists as the Earth’s seasons vary in a predictable way, with colder summers occurring at these intervals.

However there was a point, about a million years ago, called the ‘Mid-Pleistocene Transition’, in which the ice age intervals changed from every 40,000 years to every 100,000 years.

New research published today in the journal Geology has suggested the oceans may be responsible for this change, specifically in the way that they suck carbon dioxide (CO2) out of the atmosphere. By studying the chemical make-up of tiny fossils on the ocean floor, the team discovered that there was more CO2 stored in the deep ocean during the ice age periods at regular intervals every 100,000 years.

This suggests that extra carbon dioxide was being pulled from the atmosphere and into the oceans at this time, subsequently lowering the temperature on Earth and enabling vast ice sheets to engulf the Northern Hemisphere.

Lead author of the research Professor Carrie Lear, from the School of Earth and Ocean Sciences, said:

“We can think of the oceans as inhaling and exhaling carbon dioxide, so when the ice sheets are larger, the oceans have inhaled carbon dioxide from the atmosphere, making the planet colder. When the ice sheets are small, the oceans have exhaled carbon dioxide, so there is more in the atmosphere which makes the planet warmer.

“By looking at the fossils of tiny creatures on the ocean floor, we showed that when ice sheets were advancing and retreating every 100,000 years the oceans were inhaling more carbon dioxide in the cold periods, suggesting that there was less left in the atmosphere.”

Marine algae play a key role in removing CO2 from the atmosphere as it is an essential ingredient of photosynthesis.

CO2 is put back into the atmosphere when deep ocean water rises to the surface through a process called upwelling, but when a vast amount of sea ice is present this prevents the CO2 from being exhaled, which could make the ice sheets bigger and prolong the ice age.

“If we think of the oceans inhaling and exhaling carbon dioxide, the presence of vast amounts of ice is like a giant gobstopper. It’s like a lid on the surface of the ocean,” Prof Lear continued.

The Earth’s climate is currently in a warm spell between glacial periods. The last ice age ended about 11,000 years ago.

Since then, temperatures and sea levels have risen, and ice caps have retreated back to the poles. In addition to these natural cycles, manmade carbon emissions are also having an effect by warming the climate.

Sourcecardiff

Find us here

Get news from the CSGLOBE in your inbox each weekday morning

The views and opinions expressed in this article are those of the authors/source and do not necessarily reflect the position of CSGLOBE or its staff.

Paid content

Ever heard of The Faroe Islands?

Faroe Islands: A Fresh Little Corner of Scandinavia Where: The Faroe Islands are an island group consisting of 18 major islands about 655 kilometres (407 mi)...

Ancient and modern cities aren’t so different

History Repeats Itself: Ancient Cities Grew Much Like Modern Ones Despite notable differences in appearance and governance, ancient human settlements function in much the same...

How Living in Nature Proves to Be Great for Health

“Scientists have discovered that living near trees is good for your health” The preceding headline in quotes recently appeared in the mainstream media. The article...

What's New Today

Georgia House Votes To Allow Citizens To Abolish Police Departments In The State

The Georgia House backed an effort on Friday to dissolve the Glynn County Police Department and any...

Leaked CDC document contradicts Pence claim that U.S. coronavirus cases ‘have stabilized’

Even as Vice President Mike Pence wrote in a Wall Street Journal op-ed published Tuesday that coronavirus...

Five bombshells about Trump from Bolton ‘s book

Excerpts from former national security adviser John Bolton ’s book about his time in the Trump administration...

Don’t Listen to Fox. Here’s What’s Really Going On in Seattle’s Protest Zone.

It seems I live in a city undergoing a “totalitarian takeover” that will lead to “fascist outcomes”...

MOST READ

Complete List of BANKS Owned/Controlled by the Rothschild Family

What’s the significance of having a central bank within a country and why should you concern yourself, your family and colleagues? Central banks are illegally...

What Is Agenda 21? Depopulation of 95% of the World By 2030

Most people are unaware that one of the greatest threats to their freedom may be a United Nations program which plans to depopulate 95%...

Putin has Banned Rothschild and His New World Order Banking Cartel Family from Entering Russian Territory

As of recently, Russian president Vladimir Putin took yet another decision for his country. "Under any circumstances", the Rothschild family is banned from entering Russian territory. Along...

Ever heard of The Faroe Islands?

Faroe Islands: A Fresh Little Corner of Scandinavia Where: The Faroe Islands are an island group consisting of 18 major islands about 655 kilometres (407 mi)...

The Planet Could Run Out of Water by 2040

Scientists Warn That an “Insurmountable” Water Crisis Will Grip the Planet by 2040 New study concludes that water shortages may be a bigger problem than...

Arctic Transformed into Alien Landscape in Surreal Climate Change Photo

Gone are the days when we could count on the Arctic landscape to be painted in shades of white. The permafrost beneath the snow and...

The Ancient Pyramids of Antarctica — Piri Reis Map Suggests a Thriving Ancient Civilization

The images show what appears to be three pyramids with four sides similar to the famous Giza pyramids in Egypt. Could these be authentic man-made...

First, Marijuana. Are Magic Mushrooms Next?

In Oregon and Denver, where marijuana is legal for recreational use, activists are now pushing toward a psychedelic frontier: “magic mushrooms.” Groups in both states...

The Elite Want to Transfer Consciousness to a New Body and Live Forever

There’s a body of research — treatments, cures, procedures — that are afforded by wealthy elites, quietly worked on in private labs and little...

72 Bombs a Day – How the U.S. Spreads Democracy and Freedom

Among the many other landmark events that took place in 2016, the United States military dropped a whopping 26,171 bombs in foreign nations. This is...

German artist lights up US Embassy

The US embassy in Berlin was transformed into anti-NSA protest art for five minutes by German artist German artist, Oliver Bienkowski made a point of...