ICE AGE

The Ice (Ice Age) is the world's climate is colder than normal. and this is the fields of ice (ice), which covers an area outside the region-polar. The causes of ice ages. The causes-of-fallen snow in the winter. do not melt in summer. The accumulation of ice over the years. and dedicated more and more. konvess in a field of ice covered outside-the-ground-the polar region.

All four major Ice Ages Global Times.

A. Precambrian (Cryogenian).

Two. Ordovician.

three. Late Permian Carboniferus.

Four. Pleistocene.

Currently they are in-the Pleistocene ice age of 4.

fundamental cause of geography-ice age. includingï-the position of the-Continent. -Elevation of land. And ocean currents. Together to create conditions favorable to ice-l'accumulo over the years.

continent of the world moves slowly and changes. About four million years ago. The region around the North Pole-has begun to help the ice age. Initially, the-the ice is so small. And every time he does not take long. But over time-the conditions that express pro-icing is on-the-rise tower. ERA nearly a million years ago. around the world into an ice age. The scene in the ice-East or (Pleistocene Ice Age).

The geography of the world is cold as usual. Glacier-covered area is spread around the North Pole is more time. But the cold was not constant. Every year tens of thousands of variations in Earth's orbit that affect the way the season-l'eccentricità the orbit. (Eccentricity) and the tilt of the earth (obliquity) and the rotation of the shaft-(precession) is a synergism of the northern hemisphere summer, children, hotter than normal. The 'COLLECTION glacier. was dissolved in the summer and fall of fresh snow each year. The recessions of-the glaciers. a warm period between ice ages up.

world's glaciers covered a wide range of tea-glacial period between ice ages and warm interglacial period known as one of the many-million years ago. synergism of the orbit will have a warm -130,000 90,000 per year (an average of 110,000 per year), relatively short startup period of global warming. About a thousand or two thousand years.

We-current hot-called Holocene, one after the ice age started Repeatability, Wisconsin (European Weichselian) ended 13,000 years ago, the factors that make the world a warm up from about 9000 years before today. The climate was relatively warm period called the Holocene-optimal Between 9000-5500 years before present. the world is gradually heated less, respectively. The instability of the climate. A range of warm to cool it. Due to natural forces have influenced the second-That. Today we live in an age where climate change is a constant call-in-the late Holocene stadial fluctuations neoglacial the air was warmer than usual, so-called interstadial scientists believe that the key factor in climate change-up. -During the late Holocene fluctuations of energy from the sun (solar variations).