I agree with Mrudul. The only way to atleast make a begining is to stop using plastic ourselves and try and educate people as and when we see it happening. In Himachal plastic is banned and most shops and traders do not use plastic bags, using natural fibre bags or old new paper instead. But the holiday makers, tourists are upset about this and insist that the plastic bags be made available, since they are unable to carry the stuff bought locally in paper wrappings......
Nothing much can be done about this till people, locals and tourists alike realise the huge damage they are doing to the ecology....
Govt needs to step in, but at the same time, it is the people themselves and the locals that need to get sensitized to the gravity of the matter...