Özet:

Thermal gases are atmospheric components that have a direct effect on Earth's temperature and lead to global warming when its intensity increases excessively. The increased need for energy and the global warming that it brings with it have become a common problem for both developed and developing countries. Therefore, the study of the impact of the use of renewable energy sources on carbon dioxide (CO2) emissions in controlling global warming is an important subject of research. Given the CO2 emissions of the countries, the United States (US) is in the first place. In addition to this situation, the US was preferred for analysis due to both accessibility to energy data and the high frequency of the energy variables used. In the study that used the Morlet wave coherence model, one of the methods of wave coherence, the 1989:1-2017:8 period was considered. The U.S. biofuel consumption, total biofuel energy consumption, wood energy consumption, hydroelectric energy consumption, industrial production index, total fossil fuel consumption, nuclear energy consumption and total energy-related carbon dioxide emissions are included in the model as variable. The analysis determined the phase intervals in which the relationship between biofuel and total biofuel energy use and CO2 emissions has a negative correlation. Thus, the use of renewable energy has been concluded that there are periods in which emissions are reduced, leading to CO2 emissions.

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