Starbucks is going as green as its logo. A snap shot of Starbuck's homepage.
According to one of Starbucks' partner who is also my guitarist Jean/Glacius (if you see Glacius working at Borders The Curve, say *woot Woot*) Starbucks is going to switch off unused lights around its respected stores' premises at Earth Hour.
No...they won't be shutting down the espresso machines, blenders, grinders, oven, etc. so you can still enjoy your favourite brew of the day with minimal lighting.
Remember, Saturday, March 28th, at 8:30pm is Earth Hour :)