Thomas Stieve, 13/04/20 19:11:
I am writing an academic article. For this research, I am creating an index, which I would like to call the "Wikipedia Global Consciousness Index."
The relevant section is "nominative use". https://meta.wikimedia.org/wiki/Trademark_policy#policy-nominativeuse
My personal impression is that your proposed name is potentially misleading, while it would be merely descriptive to call it "Global Consciousness Index for Wikipedia" or something like that. A separate matter would be the usage of the trademark beyond the name, e.g. on the frontpage of the website or cover of a document.
Federico