The geographical isolation is the basically refers to the different types of organisms such as plants and the animals and they are separated due to exchanging process of the genetic elements on organisms with the another organisms of similar types of species.
The main difference between the habitat and the geographical isolation is that the relative areas of these types of organisms population are happened due to the speciation.
On the other hand, the habitat is the type of the reproductive isolation between the two types of species.
The global temperature records show the fluctuation of temperature from ocean to landraces and varying extremes. These have existed since the 1850 period when measured from the Pleistocene ice age by the use of various tools and techniques like the weather balloon radioscopy.
Tree ring and ice core data have shown a measuring record from 1000 to 2000 years of data, based on lake sediments, cave deposits and fossils records. The global mean surface temperatures have ranged for over 25 years of span with periods of little ice age and medieval warm periods.