Dia Mirza

While the Twitter handle #Travelingbottle, urging people to carry their own bottles and avoid the plastic variety, has earned worldwide appeal since last year, actor, green activist and UN Goodwill Ambassador Dia Mirza has taken it upon herself to spread the word in India. She's been regularly tweeting about the need to carry your own water bottle while on move, be it in the country or overseas. Mirza posted recently, "I drink (filtered water straight from the kitchen) in my own bottle," while sharing frames of herself at different halts in India. Now, if only everyone in her fraternity could follow suit. That would be something.