The Evolution of Green Data Centres: a practical guide
www.datacentres.com/reports/dcgreen07.asp
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
“It is almost certain that over the next 12 - 24 months a range of Data Centre related environmental standards and laws will be released in most developed countries.”