Testing the transport-induced environmental Kuznets curve hypothesis: The role of air and railway transport

This article was co-authored by Festus Adedoyin, PhD candidate at Bournemouth University and volunteer at ISNAD-Africa, alongside Sinan Erdogan, Samuel Asumadu Sarkodie and Festus Victor Berkun.

So many things can cause CO2 Emissions, destroy our environment and the quality of the air we breathe.

In this study, we access how air and railway transport influence our environment. The airline and railway industry contribute immensely to economic development, however, its role in environmental pollution requires attention. Here, this study builds on the theoretical pedigree of the environmental Kuznets curve (EKC) hypothesis to explore the contribution of the air and railway transportation sector and urbanization to the emission-growth argument.

We utilized annual time-frequency data from 1995 to 2014 for a panel of top 10 air passenger carrier countries using robust panel estimators that control for cross-section dependence.

The empirical analysis shows a positive significant relationship between emissions and economic growth, thus, economic growth is emission-embedded with limited green growth. The main finding is that while air transportation drives pollution, railway transportation, and urbanization decline emission.

It is thus noteworthy that, despite the need to grow the economy, it is much more vital to emphasize green growth via the promotion of renewable and green energy sources, especially in the aviation industries.

The study recommends an urgent need for clean and environmentally friendly energy sources for air sector operations

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