chat flirt Hamm - Women dating Bornholm
Note moreover almost all heating periods characteristic shape.The heat comes suddenly, perhaps in a few decades and then decreases slowly.Introduction - The 8.200 cold period - The Holocene Climatic Optimum - A Green Sahara - Between the Holocene optimum and the Roman Warm Period - The Roman Warm Period - The Cold Period of the Migration Time - The Medieval warm period - The Little Ice Age - The Modern Warming Period - Sun Spots - Links and literature - If you want to know what the climate was like in the Holocene, simply take some outerwear and go out into nature and look around.
Temperature and Milankovitch insolation during Holocene. The upper reddish graph represents the temperature in Celsius on the ice surface in Greenland.
The curve is generally falling through the Holocene but overlaid by many cold and hot periods.
The temperature often varied more than 20 degrees during a few hundred years or perhaps less.
The Holocene cold and warm periods, however, represent only small temperature changes compared to both the glaciation periods and the other interglacial periods.
Holocene has a near flat top, which represents a fairly stable climate through ten thousand years, while the preceding interglacials are generally pointed, that is the temperature has risen to a maximum and then declined again, maybe after only a few hundred years.
Only Holocene could offer a stable climate for a long time, during which agriculture and civilization could develop.Within the last few hundred years the temperature has again increased, but not to such heights as in Hunter Stone Age. It shows eight different reconstructions of Holocene temperature. Some reconstructions show a vertical dramatic increase in temperature around the year 2000, but it seems not reasonable to the author, since that kind of graphs can not possibly show temperature in specific years, it must necessarily be smoothed by a kind of mathematical rolling average, perhaps with periods of hundred years, and then a high temperature in a single year, for example 2004 will be much less visible.The trend seems to be that Holocene's highest temperature was reached in the Hunter Stone Age about 8,000 years before present, thereafter the temperature has generally been steadily falling, however, superimposed by many cold and warm periods, including the modern warm period.Holocene represents the present, which basically is a Pleistocene interglacial period.Holocene is represented by the thin red line on the far left.The interglacial Holocene has supported the development and growth of human civilizations, it has been the cradle of civilization, not to say their uterus.