However, the analysis of the measured data by Dübal and Vahrenholt shows that the warming due to the decrease of 1.4 W/m² short-wave radiation and the – 1.1 W/m² increase in long-wave radiation is mainly attributable to the cloud effect. The IPCC attributes 100% of the warming to this effect and justifies this with model calculations. This contrasts with the assumption made by the IPCC in its most recent report that the warming caused by the increase in long-wave back radiation was due solely to the anthropogenic greenhouse effect. The bridge chart shows the drivers of this change and these are clearly in the area of shortwave radiation in the cloudy areas, which make up about 2/3 of the Earth’s surface (SW Cloudy Area, +1.27 W/m²). The net energy influx was positive throughout the period, increasing from 0.6 W/m² to 0.75 W/m² from 2001 to 2020. Our latest publication has examined TOA and ground-level radiation fluxes for the entire period and related them to changes in cloud cover. NASA researcher Norman Loeb and collaborators, as well as the Finnish researcher Antero Ollila, had already recently pointed out that the short-wave solar radiation increased from 2005 to 2019 due to the decrease in low clouds. The authors come to this clear conclusion after evaluating the CERES radiation data. It was even largely compensated for by the likewise increasing permeability of the clouds to long-wave radiation emanating from the Earth. The long-wave back radiation (the so-called greenhouse effect) contributed only to a lesser extent to the warming. With solar radiation remaining nearly constant, this means that more shortwave radiation has reached the Earth’s surface, contributing to warming. Short-wave radiation has decreased sharply over this period (see figure), equally in the northern and southern hemispheres (NH and SH). Our new publication “ Radiative Energy flux variation from 2001 – 2020″ has brought to light a surprising result for climate science: the warming of the Earth in the last 20 years is mainly due to a higher permeability of clouds for short-wave solar radiation. 20 km (TOA = “Top of Atmosphere”), and also in relation to the Earth’s surface. These data are determined both in relation to an altitude of approx. The NASA-operated satellite-based CERES project has been providing such radiation data for two decades now, as well as data on the development of cloud cover in temporal and spatial resolution. If it is positive, the Earth is heating up if it is negative, it means cooling. the difference between solar irradiation and long- and short-wave radiation, determines the change in the energy content of the climate system. We have investigated the Earth’s radiation balance over the last 20 years in a peer – reviewed publication in ” Atmosphere”. The warming of the last 20 years has its essential cause in the change of the clouds.
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