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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 ...
Camilo Rada's user avatar
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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, ...
Mark's user avatar
  • 336
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 ...
David Hammen's user avatar
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7 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 ...
Jan Doggen's user avatar
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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 ...
Camilo Rada's user avatar
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6 votes
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Were sub-sea river channels formed when the land was above sea level?

Can it be concluded, based on this picture alone, that the channel was formed when the entirety of it was above sea level? In other words, is that the most plausible known mechanism for the formation ...
David Hammen's user avatar
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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 ...
Keith McClary's user avatar
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, ...
David Hammen's user avatar
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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 ...
JeopardyTempest's user avatar
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 ...
trond hansen's user avatar
  • 1,888
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) ...
Mr.inquisitive's user avatar
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 ...
Camilo Rada's user avatar
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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 ...
gerrit's user avatar
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2 votes

Migration Routes for Animals from Asia to America

The jaguar is a close relative of the Asiatic leopard and must have had a common ancestor within the last 5 million years. The South American tapir is obviously closely related to the Malayan tapir ...
David Hammen's user avatar
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2 votes
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How big of an event is needed to trigger a long winter?

A small meteor/asteroid impact might trigger a nuclear winter, but it would be registered by people and it would be very unlikely to trigger an ice age unless the impact created a very large amount of ...
trond hansen's user avatar
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2 votes

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

Glaciers flow downhill and outwards. Outwards means if you form a glacier on flat (or with a round body, gravitationally equipotential) ground, then its weight will eventually push it outwards in all ...
Oscar Lanzi's user avatar
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2 votes

Was Zealandia above water during the last Ice age?

Was Zealandia above water during the last Ice age? For the most part, no. New Zealand's North and South Islands likely would have been connected, New Caledonia and other currently existing islands ...
David Hammen's user avatar
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2 votes

Why was the ice age more severe in North America than in Eurasia?

To add more detail to @Andy M's answer and your subsequent question in the comment: Canada is much closer to the wet USA and there is no ocean in between. Ice doesn't have to correlate with the ...
Mehmet Karatay's user avatar
2 votes

Why was the ice age more severe in North America than in Eurasia?

For ice sheet formation you need both cold conditions and precipitation, if it's cold but dry you will get permafrost, but not enough snow to build up glaciers. This map of precipitation during the ...
Andy M's user avatar
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1 vote

Why were the Interglacial periods in the early Pleistocene spaced about one million years apart, but recent ones only 100,000 years apart?

It was a transition from a 41000 year cycle to a 100000 year cycle that happened about a million years ago (the Mid-Pleistocene Transition), not from a 1000000 year cycle to a 100000 year cycle. There ...
David Hammen's user avatar
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1 vote

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

I think that it’s a language issue. When people talk about glaciers “moving south”, they don’t mean that any specific glacier literally moved south. They mean that the general area in which glaciers ...
Gimelist's user avatar
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1 vote

History of the Arctic Ocean

During glaciations, the shelves down to ~100m depth would have been above sea level, but they would have been covered by ice sheets. Geology.com The actual "ocean floor" would still be deep water. ...
Keith McClary's user avatar
1 vote

How is climate change today different than the climate change that ended the ice age(s)?

There is a major difference. The climate changes that caused the end of the last Ice Age (and the start/end of previous ones) were basically the result of changes in the Earth's orbital eccentricity ...
jamesqf's user avatar
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1 vote
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How much did temperature vary during the Ice Age?

Your article says an ice age was 12F (or about 6C) colder, while other sources quote 10C colder, so there is not complete agreement on how much colder an ice age was compared to the present day. This ...
Michael Walsby's user avatar
1 vote

Glacial extent variability during last glacial period?

This map should address at least part of your question The here documented GIS map and dataset contains a collection of Last Glacial Maximum (LGM, ~21k yBP) paleoenvironmental data. It is the first ...
jeffronicus's user avatar
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1 vote

Will the Mini Ice Age solve our Global Warming Heat problem

According to GW theory, global temperature trends toward an equilibrium depending on CO2 concentration. If we could stabilize concentration at today's levels it would take decades to approach ...
Keith McClary's user avatar
1 vote

Siberia (Beringia) during last glacier period

This paper basically summarizes the thinking behind the highly-productive mammoth step theory: Zimov, S.A., Zimov, N.S., Tikhonov, A.N., Chapin, F.S., 2012. Mammoth steppe: a high-productivity ...
mace's user avatar
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