Hi Shivi,
Green HR, is a process which involved for two main elements
1. Environmental friendly Human Resource practices
2. Prevention of knowledge capital
Green HR generally involves in reducing usage/printing of papers and minimizing paper works. Green HR is also a process which helps companies to find alternative ways to cut down the cost. It is also said to be a employment model designed to assist industry professionals in retaining, recalling, preserving, and developing talent needed to ensure future business initiatives and strategies are met.
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Green HR ~ HR to HR 2.0 and Human Capital (HCM)