**6. Conclusion**

Environmental quality is mainly affected by the use of ICT for economic growth. The objective of this study is to examine the relationship between ICT diffusion, economic growth, and environmental quality in Morocco and Tunisia from 1980 to 2018. An ARDL simulation model was utilized to describe the short-term and the long-term impact of ICT and economic growth on environmental quality in both countries. Findings of ARDL simulations model indicate that, in the short and long term, ICT and economic growth boost Moroccan and Tunisian CO2 emissions. However, the interaction between ICT and economic growth mitigates this effect. In other word, the interaction between ICT and economic growth enhances the environmental quality in both countries. Our results collaborate those of Khan et al. [9] and Danish et al. [14] which indicate a negative relationship running from the interaction between the ICT diffusion and economic growth to CO2 emissions.

It is recommended that policy makers in Morocco and Tunisia should adopt such policies that help to reduce CO2 emissions by enhancing the use of ICT for economic growth. In fact, the policy makers should adopt modern technology for electrical products and industrial production. Also, policy makers should develop policies that center on energy efficient infrastructure and use clean energy. Similarly, the policy makers should design policies to control the inefficient use of ICTs and originate green ICT projects.

Future papers for investigating the role of ICT in moderating the effect of GDP on CO2 emissions can focus on other large samples, such as MENA countries. Also, future studies may focus on a comparative analysis of the relationship between ICT, GDP, and CO2 emissions in developing and developed countries.
