Under the scheme, passengers accrue credit for every plastic bottle they recycle which can be used to purchase metro tickets.
Travellers in Rome are being offered free metro tickets in exchange for plastic bottles as part of a scheme to make the city more environmentally friendly.
The plastic-for-tickets venture, launched by the Italian capital’s public transport company ATAC, is currently running at three stations.
Under the scheme, passengers can deposit plastic bottles at stations in exchange for a €0.05 credit that can be spent to purchase online tickets.
They need to download an app onto their mobile phones which registers the number of tickets they have earned on the basis of the number of bottles fed into the recycling machines.
A standard ticket – valid for one metro ride or 100 minutes on all buses allowing transfers – costs €1.50 so an individual would have to recycle 30 bottles to afford it.
Original Article: http://news.sky.com/story/plastic-for-tickets-free-travel-for-recycling-in-rome-11826316