It's no coincidence that one of the world’s happiest countries is also one of the greenest http://on.natgeo.com/2yxC3IZ

It's no coincidence that one of the world’s happiest countries is also one of the greenest http://on.natgeo.com/2yxC3IZ 

https://twitter.com/NatGeoTravel/status/920650825839665158