LAUSR

As addressed by many studies, greenhouse gas has a significant impact on the different aspects of life and more importantly on the whole environment. The excessive emission of green gas leads to climate change which is regarded as one of the most significant challenges of 21 century. Hence, in this regard, this paper has addressed the changing greenhouse gas (GHG) emissions in 18 countries of the MENA region. For this purpose, ten different scenarios of this disease's future status and its restrictions were considered in an input–output modelling framework. The empirical results indicated that the emission of greenhouse gas is reduced under all scenarios. However, some countries experience more reduction due to the restriction because of COVID-19 like Syria, Iran, Yemen and Lebenon. Based on the ninth scenario, Iran and Syria have the highest reduction in emission of greenhouse gas by 13.1 and 13.8 per cent, and based on the tenth scenario, Lebenan and Syria will experience the highest reduction in emission by about 13.1 and 17.9 per cent. The results show that according to scenario 10 (explosive intensification of the pandemic without the wave subsiding over a while) and scenario 9 (the pandemic worsens step by step without subsiding over a while), Syria and Iran have the highest reduction in greenhouse gas emissions, respectively. According to scenario 1 (rapid and complete control of disease), Bahrain, Qatar, and Kuwait have the lowest reduction in GHG emissions. Besides, the study draws several fruitful implications regarding environmental concerns as sectoral analysis such as Hotels and Restaurants, Retail Trade, Fishing, Wholesale Trade, and Transport sectors. Moreover, policymakers should be alert that notwithstanding all limitations, Private Households and Public Administration develop their emissions during the pandemic since quarantine intensifies the supply of these services. Surprisingly, none of the policy restrictions have a significant impact on GHG emissions from Education, Health, and Other Services, Petroleum,Chemical, and Non-Metallic Mineral Products, Textiles and Wearing Apparel, and Re-export & Re-import, demonstrating the robust and established nature of these sectors' activities. To control the emissions of the quarantine-neutral sectors, long- and mid-term structural and environmental policies should be considered. The researchers are guided by the novel implications in terms of how various industries might reduce emissions in different ways.