A global profusion of coal provides many countries with opportunities for economic growth. The direction of causality between coal consumption and economic growth is useful for policy making, however, existing empirical evidence have failed to reach a consensus. This paper examined the liaison...

The paper provides empirical evidence of an EKC – a relationship between income and environmental degradation for Portugal by applying autoregressive distributed lag (ARDL) to times series data. In order to capture Portugal’s historical experience, demographic changes, and international...