Green hotel opening? (3)

I believe the answer is:

eco

(Other definitions for eco that I've seen before include "Green prefix" , "Umberto --, Italian writer" , "Umberto - - , novelist" , "Concerned with the environment" , "Environmental group" .)

I've seen this clue in the LA Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.