%0 Journal Article
%T Effects of Anthropogenic CO<sub>2</sub> and Thermally-Induced CO<sub>2</sub> on Global Warming
%A Masaharu Nishioka
%J Atmospheric and Climate Sciences
%P 317-327
%@ 2160-0422
%D 2024
%I Scientific Research Publishing
%R 10.4236/acs.2024.143020
%X Changes in CO<sub>2</sub> and temperature are correlated, but it is difficult to observe which is the cause and which is the effect. The release of CO<sub>2</sub> dissolved in the ocean into the atmosphere depends on the atmospheric temperature. However, examining the relationship between changes in CO<sub>2</sub> caused by other phenomena and temperature is difficult. Studies of soil respiration (<i>Rs</i>) since the late 20th century have shown that CO<sub>2</sub> emissions from soil respiration (<i>Rs</i>) are overwhelmingly greater than CO<sub>2</sub> emissions from fossil fuel combustion. This is also noted in the IPCC carbon budget assessment. In this paper, the dependences of <i>Rs</i> on temperature, time, latitude, precipitation, seasons, etc., were investigated using the latest NASA database. The changes in temperature and <i>Rs</i> correlated well. There is also a good correlation between <i>Rs</i> and CO<sub>2</sub> generation. Therefore, an increase in temperature results in an increase in CO<sub>2</sub>. On the other hand, there is no evidence other than model calculations that an increase in anthropogenic CO<sub>2</sub> is mainly linked to a rise in temperature. The idea that global warming is caused by anthropogenic CO<sub>2</sub> production is still a hypothesis. For these reasons, the relationship between global warming and anthropogenic CO<sub>2</sub> should be reconsidered based on physical evidence without preconceptions.
%K Global Warming
%K Anthropogenic CO<sub>2</sub>
%K Thermally-Induced CO<sub>2</sub>
%K Soil Respiration
%K Carbon Cycles
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=134696