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31 votes
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During the "Ice Ages" or "Snowball Earth" times, where was all the energy?

I'm not quite sure if the question is asking about glacial, ice ages, or snowball Earth, and whether it's about the onset or end of a glacial period. I'll try to hit all three. Ice Ages and ...
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18 votes

Will the Mini Ice Age solve our Global Warming Heat problem

I'm going to try to answer this, though it's actually a very hard question depending on how close you look at it. Lets start with the American Physical Society's statement on climate change - ...
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15 votes

During the "Ice Ages" or "Snowball Earth" times, where was all the energy?

Of course it isn't "absurd", and looking at the ball-park energy budget figures you'll see why: First, I don't think anyone is claiming the Earth is completely frozen. More of a "slushy at the ...
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14 votes
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What would it be like to live in an ice age?

It depends where, the continental landmasses at higher latitudes would be covered by massive ice sheets. Therefore the life in the sections of the US and Europe that are close to the Ice sheets would ...
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11 votes
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Why does Mars' experience an 'ice age' at high axis obliquity, when Earth experiences an ice age at low axis obliquity

If I understood it correctly, the important point is the temperature difference between mars and earth. On earth increasing obliquity, as you wrote, leads to increased melting of ice, ie. you increase ...
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  • 529
11 votes

Will the Mini Ice Age solve our Global Warming Heat problem

No, solar activity will not help offset anthropogenic warming in any significant way. Recent research says a grand solar minimum would cause no more than 0.3C cooling over the 21st century [Feulner &...
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10 votes
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Are we going to enter a mini ice age by 2030?

These claims originate with a paper by a mathematician named Valentina Zharkova and others, who studied a correlation between solar magnetic fields and sunspots. Based on the last three solar cycles, ...
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10 votes

Next Ice age may be unavoidable

This question (if you can call it like this) is not even wrong. Let's ignore the fact that the title has little to do with the actual content of the question. Let's discuss your statement: If this ...
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9 votes
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Carbon Dioxide levels appear to be linked to the Milankovitch cycles according to Ice Core data but what is the mechanism?

The link between orbital parameters and CO2 levels is, as you wrote, the temperature. Orbital parameters may change, via feedback mechanisms, the atmospheric temperature. To my knowledge the most ...
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  • 529
9 votes

Are Ice Ages Affected by the Freezing Out of CO2 in Antarctica?

The freezing point of carbon dioxide is -78.5C. The temperature at which carbon dioxide sublimates is not a fixed value. It instead is a function of the partial pressure of carbon dioxide. That value ...
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7 votes

Will the Mini Ice Age solve our Global Warming Heat problem

The "mini ice age" hypothesis is hype (note the lack of references to supporting peer-reviewed literature). For scientific information on its possibility, see this GRL article by Meehl et al. (2013). ...
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6 votes
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How old are Chile's fjords?

The Quaternary is definitely a good guess. But it is difficult to answer your question because the "age of a fjord" is a rather ambiguous concept. Also, I'll asume you are interested in the bedrock ...
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6 votes

Are ice-ages dependent on an un-equal distribution of land-masses?

The Earth's climate switches between "hothouse Earth", where ice is nearly absent worldwide, and "icehouse Earth" where the Earth intermittently has ice that stretches far from the poles. Periods when ...
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6 votes
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What's a frost-gley?

A frost-gley is a waterlogged permafrost soil. IOW, a gleysol that has undergone cryoturbation.
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5 votes

When will glaciation resume? Has global warming delayed return to global cooling?

First, great question, though answers are likely to be non specific and speculative. As far as I understand, we are currently living in the Holocene, an interglacial period of the Quaternary ...
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5 votes

Last ice age: did glaciers move South or move downhill?

Did glaciers move South or move downhill? You are posing this as an either-or question. The answer is "Yes." The highest points above sea level in Manitoba, Minnesota, Ontario, Michigan, ...
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5 votes
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Was there a period of global warming before the start of the last ice age?

There was an interglacial befor the last glaciation: glacial–interglacial cycles last ~100,000 years (middle, black line) and consist of stepwise cooling events followed by rapid warmings, as seen in ...
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4 votes
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For what percentage of the earth's history has there been permanent ice?

As has been abundantly said in the comments and on meta, there is no proper answer to this question in the current state of knowledge. But indeed we can at least check if we can come up with a rough ...
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4 votes

Circum polar regions in Interglacial periods

I understand following comment as part of your question: Was that climate and terrain habitable by prehistoric humans? I also assume that by "interglacial periods" you don't mean the last and ...
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4 votes
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How is climate change today different than the climate change that ended the ice age(s)?

Difference #1: Speed. The warming at the end of the ice ages went much, much slower than what we are currently experiencing. Estimates of the amount of warming since the beginning of the industrial ...
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3 votes

Are Ice Ages Affected by the Freezing Out of CO2 in Antarctica?

During an ice age little CO2 will reach the arctic,it will be absorbed by sea water in all the oceans,This will create a positive feedback,lower CO2 level in the atmosphere will make it even colder so ...
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3 votes

After global warming, does an ice age occur because the polar caps have melted and caused more water to absorb the gloabl warming

Seems a valid enough question. But what stand out to me is that the area of Earth covered by water doesn't appear to change by a notable percentage in a rough estimate of a world without ice: (found ...
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2 votes

Are ice-ages dependent on an un-equal distribution of land-masses?

First, let us try to understand how precession affects climate: The precessional effect on climate is caused due to two factors:- (1) Axial Precession (2) Apsidal Precession The precession of the ...
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2 votes
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Current temperature increase VS decrease during the little ice age

To be sure about why it appears to be centered around -0.2°C, you'd have to go to the original source of the graph. However, as an educated guess, I would imagine that they are showing the anomaly ...
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2 votes
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Ice Age/Interglacial Period Cycle

I'm guessing this has been answered before, but in a nutshell, the primary mechanism over the last 3 million years or so is nothing more than colder summers in the Northern Hemisphere. Now, one cold ...
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  • 5,727
2 votes
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What would happen to the Earth if there were no seasons?

In a short timescale, let's say one or two years after a permanent equinox state, the temperature would be basically the current mean annual temperature. This is because if we take the premise of ...
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  • 17.1k
2 votes

Next Ice age may be unavoidable

The changes of climate in the past you're talking about occurred mainly because of the periodic change of earth's movements relatively to the sun. For example the swinging rotational axis of the earth ...
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2 votes

Did the formation of Panama trigger the beginning of Ice Ages?

Pretty much, because the joining of the Americas caused a shift in the circulation of the oceans. Because before, there was no antarctic circumpolar current (ACC), but there was a current (maybe more) ...
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