Above: Australopithicus is a human ancestor species that survived in the world before the ice age. This particular specimen is from the ice age period. Image: The original complete skull (without upper teeth and mandible) of a 2.1 million year old Australopithecus africanus specimen so-called Mrs. Ples, discovered in South Africa.
Collection of the Transvaal Museum, Northern Flagship Institute, Pretoria, South Africa. (catalogue number STS 5, Sterkfontein cave, hominid fossil number 5). Original file (3,634 × 2,592 pixels, file size: 3.3 MB, MIME type: image/jpeg); ZoomViewer: flash/no flash. Image dimensions changed to 640 x 456 pixels. File size reduced to 47.55K Author: José Braga; Didier Descouens. Source: Own work. Date: Taken on 26 October 2010. Licence: This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
Those who are shocked to discover that climate actually changes are starting to worry that the world is beginning to wobble like it used to wobble before the ice age!
True to form, The Guardian (1) has picked up on some findings by NASA to assert what most educated people already knew – that climate is actually and always has been in a state of flux.
When the ice sheets and glaciers finally shrink dramatically from their present proportions, as they will do at some point unless humans modify and regulate the climate, we will no longer be in an ice age. Such change is normal and consistent with the geological record.
The current ice age began around 2.6 million years ago though we are currently in an interglacial or warmer phase of this ice age (2). Human ancestor Australopithecus emerged long before the current ice age. These primitive proto-humans coped and evolved in a world where ice sheets did not reach their current extents and managed to do so without advanced technology.
Modern humans, Homo Sapiens, appeared during the current ice age. Perhaps humans evolved due to the ice age and are genetically predisposed to living with ice on their planet. However, this does not really matter. Humans are the only life form on Earth capable of regulating the climate according to their own preferences. They are also capable of genetically modifying themselves to to suit climatic conditions. Either way, humans can and will survive any climate change that nature throws at them.
A new and interesting era for humanity is coming into being.
(1) Melting ice sheets changing the way the Earth wobbles on its axis, says Nasa. The Guardian. http://www.theguardian.com/environment/2016/apr/09/melting-ice-sheets-changing-the-way-the-earth-wobbles-on-its-axis-says-nasa
(2) Ice Age https://en.m.wikipedia.org/wiki/Ice_age
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