ice-ages

During these bursts of Arctic fury it seems as if the ice ages have once again returned, if only for several days or weeks.

Hence, it is not the dust that causes mini ice-ages (or ice ages) on earth but the Sun's reversing magnetic field.

These ice ages may have been the result of the expansion of land plants that followed the Cryogenian.

I'll review the first two of these themes and leave the far more speculative discussions about the cause of the ice ages for another time.

An outsider's review of the astronomical theory of the climate: is the eccentricity-driven insolation the main driver of the ice ages?

During the ice ages , human beings exposed to the colder temperatures of the time would often make their homes in caves.

We have had warm periods and little ice ages; but the changes have been small.

They knew that every so often during past ice ages, drops in sea level created a land bridge across the strait.

Various human species, including our own Homo sapiens, have endured ice ages and warming periods as well as floods and droughts.

It records the annual rise and fall of greenhouse gases and temperatures going back before the onset of the last ice ages.

Ice ages come in slowly, but go out with a bang.

Planet X makes sense, intuitively, as the reason for pole shifts, for crust shifts, for the Ice Ages and wandering poles.

Given the number of ice ages over the past 20m years, anantifreeze gene would be of great advantage.

So evenduring the ice ages, life continued to thrive on lake floors and in thedeep ocean.

The ice sheets that cover Greenland and Antarctica now are remnants of this and previous ice ages.

They analyze hundreds of such layers, including some from the coldest periods of earth history, the Ice Ages.

They analysed hundreds of such layers, including some from the coldest periods of earth's history--the Ice Ages.

Much of what is known about recent ice ages comes from drilling into the ice at the planet's poles .

OVER THE PAST few million years the earth's climate has swung repeatedly between ice ages and warm interglacial periods.

This reflected the low sea levels resulting from successive ice ages, according to Chris Stringer, a Natural History Museum palaeontologist.

But in fact there have been many ice ages, most of them long before humans made their first appearance.

They analyzed hundreds of such layers including some from the colder period of earth history, the ice ages.

Cosmic dust eruptions from the centre of the Milky Way cause ice-ages on Earth.

One reason to think this might happen is that during recent ice ages the cold, dry conditions caused a lot of iron-rich dust to blow around.

Previous analysis of ice cores has shown that the climate consists of ice ages and warmer interglacial periods roughly every 100, 000 years.

Think about ice ages. Over long period of time. Maybe Mars could stance water again, that some distant data.

Glaciers, glacial landforms, ice ages.

Previous prolonged weakenings in the solar cycle may have launched mini-Ice Ages.

What they found is during the ice ages the amount of water in the sea decreased. Water levle in the ocean droped by about 400feet.

Of course, the ice ages and other wrenching climate shifts of the past were topics of research.

Toady I want to talk about the earth's last major climatic shift at end of the last ice ages.

The results show that there have been eight ice ages in the past 740, 000 years and eight warmer periods.

This allows for the continuation of our species, even through the tough times such as earth's ice ages in the past.

But David Ackerly at the University of California, Berkeley, says the speed of climate change is greater than during ice ages in the past.

Siguniang Mountains is located on the southeast margin of Qinhai-Tibet plateau, and it developed 3 Quaternary ice ages.

What they found is that during the ice ages , the amount of water in the oceans decreased.

He's been studying past ice ages, and says they can help us better understand our current climate warming.

Most of us know that there have ever been Ice Ages on the earth three times.

What causes ice ages?

Climate change is not new: the Earth went through six ice ages in the past 600, 000 years.

Ice ages come and go with remarkable regularity, lasting 100, 000 years or so and then letting up for 10, 000 to 15, 000 years.

Can the Zeta's please discuss what causes the Ice Ages on Earth? Is it Planet X ?

Glacial Geomorphology and Ice Ages in the Bailang River Basin, Qilian Mountains

The evolutionary legacy of the Ice Ages

Frozen Earth: The Once and Future Story of Ice Ages