ROTTERDAM, Netherlands (AP) — A new floating farm has opened in a corner of Rotterdam's busy harbor is showcasing what its creator calls a sustainable way of producing dairy in the places where most people consume it — the world's busy cities.

Moored in a small harbor in Rotterdam's busy port, the farm is a futuristic three-story floating structure where one robot milks the cows and another automatically scoops up the manure that gives the enterprise its familiar smell.

Its roof collects rainwater and a raft of solar panels floating alongside produces 40 percent of the energy the farm needs.

The fully-functioning showcase of circular-economy farming combines Dutch expertise in recycling, building on water and automated agriculture is drawing interest from around the world.