This paper examines the macroeconomic effects of an environmental tax reform in a growing economy. A model of endogenous growth based on human capital accumulation is used to numerically simulate the growth effects of different environmental tax reforms and compute their impact on welfare in the short and the long-term. Our results suggest that the magnitude of these effects depends on the type of tax reform. Thus, only environmental tax reform that aims to use the revenue from environmental tax to reduce wage tax and increase the proportion of public spending within GDP, enhances both growth and welfare in the long-term. However, the short-term effect remains negative.