Waste/water business models in tourist areas - Need shops selling re-usable plastic bottles or supplying drinking water to tourists

I spent a few days in Varkala last week - a town and coastal resort in Kerala. As with Goa, the place is absolutely beautiful but it is rapidly becoming overrun by plastic water bottles. The smell of burning plastic fills the air every morning, and the cliffs running down to the beach are covered with discarded bottles and rubbish bags with no-where to go. 

• Has something like this been piloted/proposed already?
• Is this a problem common across tourist areas elsewhere? It certainly is in Goa, Kerala and the Andamans in places I have visited.
• What are the most interesting alternatives out there. Some I have come across are: 

• What kind of trainings on sanitation/standards would need to accompany a rollout of a different system amongst vendors to ensure standards are maintained?