Environmental education and awareness training can help to develop and encourage a transition to a greener corporate culture. A series of environmental education and awareness training programmes of The Hongkong and Shanghai Banking Corporation Limited (HSBC) (Hong Kong) was used as a case study to assess how learning transfers through nature‐based environmental education and awareness training and to investigate the possible outcomes of providing nature‐based training to employees. Evaluation of the training outcomes, in terms of changes in employees’ environmental knowledge, attitudes and behaviour, was surveyed by using retrospective post‐ and then‐test questionnaires. Results showed that employees who joined these programmes gained knowledge and changed their values and behaviour towards the environment significantly. The study also indicated the establishment of trust in and satisfaction with the organization among employees through the training, which in turn promoted employees’ organizational commitment towards corporate sustainability. Copyright © 2015 John Wiley & Sons, Ltd and ERP Environment