Impact of tourism and economic growth on carbon dioxide emissions(using non-linear ARDL method)

Global climate change, which is aggravated by the emission of greenhouse gases, especially carbon dioxide, poses a huge threat to human life, environment, development, and sustainability. As a result, reducing greenhouse gas emissions and improving environmental conditions are currently global priorities to promote sustainable growth and prevent the adverse consequences of global warming and climate change, and Iran is no exception. Therefore, it is considered important to understand the determining factors and provide solutions to reduce carbon dioxide emissions. According to the stated contents, the purpose of this study is to investigate the effects of economic growth and tourism, in order to achieve environmental sustainability by reducing greenhouse gas emissions.Design/methodology/approach: In this research, using ARDL's non-linear econometric approach, the effects of tourism and economic growth on carbon dioxide emissions in Iran during the period of 2008-2020 have been evaluated.

According to estimates, an increase of one unit of tourism and economic growth has caused an increase of 0.042 and 0.449 units of carbon dioxide emissions in the short term, respectively, and in the long term it has caused an increase of 0.177 and 0.902 units. While the decrease of one unit of tourism and economic growth in the short term has caused a decrease of 0.016 and 0.714 units of carbon dioxide emissions, respectively, and in the long term it has caused a decrease of 0.067 and 0.025.

Based on the findings of the research, it is suggested to adopt policies such as using alternative fuels and new technologies, especially in transportation services. Originality/value: The current research is innovative in terms of variables used, methodology, and time period under investigation.