Greta Thunberg Celebrates 18th Birthday With a Hilarious Message

Greta Thunberg is celebrating her birthday.
The climate change activist, who turned 18 on Sunday (January 3), celebrated her special day with a photo of herself humorously wearing a “Flat Mars Society” hoodie, mocking the Flat Earther Movement.PHOTOS: Check out the latest pics of Greta Thunberg
“Thank you so much for all the well-wishes on my 18th birthday! Tonight you will find me down at the local pub exposing all the dark secrets behind the climate- and school strike conspi