The concept of ‘Green library’ is of recent origin and is under the process of evolution.  The information available on ‘Green Library’ and ‘Sustainability’ is limited but continues to  grow. Interconnected topics of green libraries and sustainability have received a great deal of  coverage in recent years in various publications targeted toward world librarians. In this study,  scientometric study is performed on the green libraries to explore further developments. In  this regard, a total of 1644 documents were retrieved from the Web of Science (WoS) database  using a set of relevant keywords to cover all published documents. The extracted documents  were subjected to scientometric study including the contributed authors, publications, citations  received, contributing countries and institutions etc,. From the data retrieved, period of 2013 to  2022. A detailed discussion on the science and developments in this field is provided including  the potential applications of scientometrics. Being an evolving concept it is gaining popularity  among the researchers, academicians, and library professionals all over the world.