This paper searches for a fundamental comprehension and assessment on Green Human Resource Management (Green HRM) which is one of the most emerging fields in Human Resource Management today. The main focus of the article is about, what is Green, reasons behind Greening, what is Green HRM, importance of Green HRM, Green HRM practices, Impact of Green HRM practices on environmental sustainability and organizational success. It is expected to opening avenues for other researchers to fill the gap of assessing the impact of Green HRM on environmental sustainability and organizational success