Over the years environmental concerns have become progressively more prominent in all market sectors and industries. Catch-phrases like “going green”, “environmentally friendly”, “sustainability”, and “renewable” have become ubiquitous, but are interpreted differently by individuals. This leads to a myriad of thoughts and approaches on how to tackle the same problem. The overriding consensus is that climate change and global warming present an ever-increasing problem that everyone must undertake to mitigate – including the logistics/ supply chain industry as they build new facilities to meet increasing demand. It is easier to implement greener solutions for newly built construction when starting from scratch, but it is not impossible for pre-existing buildings, like warehouses, to become more sustainable. So how do you make existing warehouses more sustainable?