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significantly in the high latitudes of the Northern Hemisphere, doubtlessly elevating the risk of flooding. In addition, some regions, such because the Mediterranean, are projected to turn into drier at 2°C versus 1.5°C of world warming. The impacts of any further warming would also include stronger melting of ice sheets and glaciers, as well as increased sea level rise, which would proceed lengthy after the stabilization of atmospheric CO2 concentrations. When the Paris Agreement was adopted, the UNFCCC invited the Intergovernmental Panel on Climate Change to write a special report on “How can humanity stop the worldwide temperature rise more than 1.5 degrees above pre-industrial stage”. The accomplished report, Special Report on Global Warming of 1.5 °C , was launched on eight October 2018. Its full title is “Global Warming of 1.5 °C, an IPCC particular report on the impacts of global warming of 1.5 °C above pre-industrial ranges and related world greenhouse fuel emission pathways, within the context of strengthening the global response to the specter of climate change, sustainable growth, and efforts to eradicate poverty”. This PhD thesis consists of three scientific articles. In the first one the tropical sea level pressure response underneath global warming is investigated in a multi-model ensemble of local weather models from the 3rd section of the Coupled Model Intercomparison Project and in ERA Interim reanalysis knowledge. In this text we observe the thought to split up the tropical warming into a spatial homogeneous half and a spatial inhomogeneous half. Even though the inhomogeneous warming is roughly 10 times smaller than the homogeneous warming, the tropical SLP modifications are strongly related to the inhomogeneous tropospheric temperature changes underneath global warming. According to the Bjerknes Circulation Theorem, this sturdy relationship could be defined with a virtually direct circulation between a warmer and a colder air column, because of weak Coriolis pressure in the tropics, with rising air and low SLP in the warmer air column and sinking air and excessive SLP in the colder air column. The inhomogeneous Ttropos warming is dominated by the land-sea warming distinction. Also SLP trends show a land-sea distinction because of the strong hyperlink with Ttropos. It is charactericsed by a SLP decrease over South America and Africa and a SLP improve over the Indo-Pacific. This result is confirmed in an idealised sensitivity experiment. The developments of SLP and Ttropos in ERA Interim over the interval from 1989 till 2010 are additionally strongly linked to one another, but here the land-sea warming contrast is not the dominant driver of
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