"The temperature contrast between the northern and southern hemispheres, called asymmetry of temperature interhemispheric (ATI), is an indicator pop-up of global climate change. The average observed annual ITA (temperature of the northern hemisphere least in the south) has varied within a range of 0.8 ° C and presents an increasing trend from 1980:
This increase is primarily attributed to the impacts of spatial unequal in the external forcing of the greenhouse gases, resulting in a warming is amplified in the Arctic and the land masses of the north.
The ATI observed did not show a significant trend during the most part of the TWENTIETH century; however, began a steep upward trend (warming of the north faster than south) around 1980, the simulations CMIP5 played with more force (see images)."
The southern hemisphere has 81% of its surface covered in water, which attenuates the variation of temperature observed more intensively in the northern hemisphere. Maybe this constitutes a strategic element to parse for the future of agriculture or livestock in the northern hemisphere.., the vast lands of ARGENTINA seem to be one of the places safer to be established.
Job summary "Interhemispheric Temperature Asymmetry over the Twentieth Century and in Future Projections"
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