There have been at least five major ice ages in the Earth's past.
At least 4 that we are aware of, not including the mini ones. One would have to further define "extent" to pin this down exactly. Personally, I consider the selection of movies in 2007 a bit of an ice age. I mean - what WERE they thinking? They should have canceled the Oscars and apologized. Even the pirates refused to make copies of that trash. But I digress...
Earth was originally a big snowball, like totally covered with ice, and without going into metaphors involving my sex life, lets just say global warming got the whole thing going. Yup, volcano's spewing out carbon dioxide got the whole ball-a-melting. There have been 3 others since then, but of course the most recent is the one we know the most about. About 20000 years ago it got cold. Really cold. Sheets of ice and all that fun that comes with them shoved southward and carved up the land with its mass, creating new rivers, lakes, hills and generally making things a bit iffy for the animal life which had to push southward. (wouldn't you?). Mini ice ages also occur now and then, and basically, the climate shifts for a dozen years or so and makes it hard to get people to the beach. Some scientists speculate that the low solar activity we have been experiencing recently might be an indication of a future mini ice age, but global warming may have put a stop to it. Personally, I am just waiting for my stock to go back up so I can retire to Florida.
There have been at least 5 ice ages (more accurately glacial ages) in earth's past. Outside of these ice ages the earth has been ice-free even in higher latitudes (eg. near Arctic)
The most severe ice age occurred during the Cryogenian period and produced a Snowball Earth where glacial sheets even reached the equator.
A minor ice age called Andean-Saharan occurred during the Late Ordovicianand Silurian Period.
There have been five major ice ages in Earth's history: the Huronian, Cryogenian, Andean-Saharan, Karoo Ice Age and the Quaternary glaciation. There have been many "little ice ages" in various parts of the world, however, where the climate was unusually cold for several years at a time.
In the last 750 thousand years, there have been 2 ice ages. In fact, scientists believe we are currently living in an ice age.
We are currently in an ice-age, but in an interglacial period. There have been at least four glacial episodes in the last million years, the last one ending around 12,000 years ago.
There have been many ice ages over the past 4.6 billion years. During the past 1,000 million years there have been at least 20 known such events and probably many more not known.
3 or 4
more like 7 that we know of
Their were about 11 different Ice Ages?
4
at least 3 of varying degrees.,
Just the one, the same one we live in now which started about 2.6 million years ago. As far as glaciations are concerned there have been at least 3, possibly 4, in the last 400,000 years.
Ice ages last for some tens of millions of years with intervals of about 150 million years between them. The term is used more loosely to identify the last time that ice sheets covered much of Europe and North America.I think the ice age lasted until it melted!the iceage took about 100.000 years.
Ice ages last for some tens of millions of years with intervals of about 150 million years between them. The term is used more loosely to identify the last time that ice sheets covered much of Europe and North America.
The last ten years have been the warmest years since records began. Heat records are being broken regularly all round the world.
at least 3 of varying degrees.,
It was a 1,000 years long.
There have been multiple glacial periods, known as ice ages, during the last two million years. These ice ages are characterized by intervals of cold climate when ice sheets covered much of the Earth's surface. The exact number of glacial periods can vary depending on the scientific definition used.
Scientists believe that the Earth's average temperature has been more or less the same for the last million years. There have been "ice ages" in this time, with average temperature dropping by a few degrees. Of course, the local effect of an "ice age" in certain places was huge.
The same amount of time as the rest of the world's middle ages - about 900 years.
Just the one, the same one we live in now which started about 2.6 million years ago. As far as glaciations are concerned there have been at least 3, possibly 4, in the last 400,000 years.
Around 750000 miles duramax is the best diesel and will last.
Over the course of our planet's history, there have been many ice ages and periods of global warming. The last one of the ice ages started about 110.000 years ago and lasted until about 10,000 BC.
It lasted about 1,000 (one-thousand) years.
Yes it will concrete gains strength as it ages
About 1200 years in Europe.
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