did the ice age happen?

Answer 1

There have been at least four major ice ages in the Earth's past. The earliest hypothesized ice age is believed to have occurred around 2.7 to 2.3 billion years ago during the early Proterozoic Eon.

The earliest well-documented ice age, and probably the most severe of the last 1 billion years, occurred from 800 to 600 million years ago (the Cryogenian period) and may have produced a Snowball Earth in which permanent sea ice extended to or very near the equator. It has been suggested that the end of this ice age was responsible for the subsequent Cambrian Explosion, though this theory is recent and controversial.

A minor ice age occurred from 460 to 430 million years ago, during the Late Ordovician Period. There were extensive polar ice caps at intervals from 350 to 260 million years ago, during the Carboniferous and early Permian Periods, associated with the Karoo Ice Age.


Sediment records showing the fluctuating sequences of glacials and interglacials during the last several million years.The present ice age began 40 million years ago with the growth of an ice sheet in Antarctica. It intensified during the Pleistocene (starting around 3 million years ago) with the spread of ice sheets in the Northern Hemisphere. Since then, the world has seen cycles of glaciation with ice sheets advancing and retreating on 40,000- and 100,000-year time scales. The last glacial period ended about ten thousand years ago.

Answer 2

Yes it did. The last one was about 16000 years ago. There have been many Ice Ages. It is a very interesting topic. You should read more about it.

Answer 3

properly there look numerous problems with this style of idea in spite of in case you overlook about basing it on a pc sport. chief between them, is the issue of cool glacial water is going to be minimum, glaciers already discharge tremendous volumes of cool water into the sea gadget, that is in reality the major motive force of the tremendous ocean cutting-edge structures, the temperature massive difference between floor water temp and deep water temp creates those very cycles. in case you look on the estimates for sea element upward push that is 1m as a lot as available 2m on the better end of the IPCC estimates added to oceans that are ~3.6km deep on generic. Scale that all the way down to a better human length in case you had a pool 3.6m deep and also you added 2mm cooler water to it how a lot do you element that ought to change the temperature of the pool. "ought to there be wars over the perfect last dry land? " Umm, in an exact ice age situation, sea element drops, there ought to quite be better land, in the course of the perfect ice age sea element grow to be 120m below that is immediately, I stay on the Island of Tasmania, 200km south of the Australian mainland, in the course of the perfect ice age it grow to be area of Australia and Aboriginals walked the following, they were later cutoff because the interglacial befell and sea degrees rose, they stepped ahead some marked cultural massive difference to mainland tribes. "can we at present have the technologies to opposite the disaster?" provided that we ought to continuously be headed in the route of the subsequent glacial (till eventually we began messing with Co2 degrees) the answer is convinced

Answer 4

oh, yes! evidence is easy to see in the u.s. the so-called plains states, extending from indiana all the way to the rocky mountains, were leveled out by a sheet of ice -- more than a mile thick!

good luck!

Answer 5

five different times were recorded as nothing in the world was alive then it would return, then it would kill everything off again in five complete periods in it existence as a planet this is a science thing and a cayce theory and i kick it around when my memory will comprehend half of it

Answer 6

it is only a theory that is not proven after all how do we know for sure when humans were there when it happened. where is the logic