Over the past 100 years, the Earth has abnormally warmed to about 0.74 degrees Celsius, which has worried scientists. As for the reasons for this phenomenon, a series of theories are based on the impact of greenhouse gases on this process, while others consider processes such as volcanic and geothermal activities as well as solar activity as a result of this phenomenon. The citation of these scientists, for their own words, is the occurrence of cold and hot periods during the time that passes through the earth.
Many believe that by stopping and controlling the some factors, global warming is prevented. But the basic question is, by which method can the Earth's temperature be brought to 100 years ago (as much as the global warming)?
Hi dear K. Aliakbari
see this article: Article EcoClimate: a database of climate data from multiple models ...
Maybe it will be useful for you!
In short the radiation leaving must exceed the sum of that incoming plus internal heat reachng the surface
Dear Karim Aliakbari, Thank you very much for asking this very important question.
Question:
But the basic question is, by which method can the Earth's temperature be brought to 100 years ago (as much as the global warming)?
this is a very important issue that requires scientific research.
It seems to me that this is an interesting question and it is very good that this question appeared on the research portal Research Gate.
The above discussion inspired me to the following considerations:
The report of the International Panel on Climate Change (IPCC) shows that greenhouse gas levels on the globe are the highest in 800,000 years. Further emission, which arises according to the authors of the report mainly due to the combustion of fossil fuels, will lead to climate changes, which will be the greater, the more intensive will be the release of gases into the atmosphere. The report is a synthesis of earlier findings of the IPCC.
The conducted prognostic analyzes show that if the industrial development proceeds in the same way as before, i.e. without the implementation of eco-innovations, without reducing greenhouse gas emissions, etc. there is a risk that by 2050 the average temperature on the Earth's surface may increase by another one degrees ° C. It would have been an increase in the average temperature on the surface of the Earth from the end of the first industrial revolution, from the beginning of the 20th century by two degrees ° C. Then the pace of climate change will increase so much that the global warming process can escape any control and then the person will not be able to stop or significantly slow down this process. In such a dark scenario, the average temperature on the surface of the Earth until the end of the twenty-first century may increase by as much as four degrees ° C. Then it will be several times the increase of any negative external effects of climate change on the current state. Slak of emerging climatic cataclysms, including tornadoes, droughts, volcanic eruptions, melting of glaciers in chains of mountain peaks and in the arctic circle region at the Arctic will significantly accelerate. The melting of eternal decay in the Arctic region will release further millions of tons of methane and the greenhouse effect will accelerate even further and in the XXII century an increase in the average temperature on the Earth's surface can achieve a geometric pace. Then it will be a disaster not only for human civilization but also for a large part of life forms on Earth. Pradoxically, man as a rational, intelligent being who, evolutionarily gained an advantage over all other forms of life on Earth and subordinated the whole planet to itself, may lead to self-destruction. Or maybe it is not too late to implement a new eco-friendly economy to at least try to stop greenhouse gas emissions and reverse unfavorable global warming processes? It is therefore necessary to promote and implement the principles of sustainable development within the framework of the new green economy.
Chart. Global Warming. CO2 emissions of greenhouse gases, a forecast of the increase in the average temperature on Earth. Source: NOAA.
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