Starbucks supports the Earth Hour campaign on 19 March 2016. Non-essential lightings will usually be turned off for an hour.
To thank you for your part in fighting climate change, coffee will be on the house from 8:30PM to 9:30PM on Mar 19.
Simply bring your own tumbler to enjoy a FREE freshly brewed tall-sized coffee on them! (Find the nearest store here.)
Check out their announcement on Instagram:
Bring your own tumbler into stores from 8:30pm-9:30pm tonight and enjoy a tall-sized Freshly Brewed Coffee on us. #EarthHour 
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