Dear Barbara,
This is an interesting topic and I see that some research has already been conducted on this. You might find the following references useful:
http://facilitymgmt.humboldt.edu/sites/default/files/facilitymgmt/sustainability/envs410_121213-3_0.pdf
https://open.library.ubc.ca/cIRcle/collections/undergraduateresearch/18861/items/1.0108410
http://dspace.bracu.ac.bd/xmlui/bitstream/handle/10361/12283/16182014_BIGD.pdf?sequence=1&isAllowed=y
https://commons.pratt.edu/sesresearch/wp-content/uploads/sites/157/2017/12/Aswitha_Kadekar-Capstone_Report.pdf
Best,
Ömer