18 Dec 2017 --- As of today (December 18), users of the Boston Subway may spot Veganuary’s first-ever American advertising campaign. The eye-catching posters feature three of Veganuary’s celebrity and sporting Ambassadors: Sarah-Jane Crawford, Anthony Mullally and Dan Geisler, with each offering a different reason for taking the month-long vegan challenge: to help animals, to protect the environment and to improve health.