Instead of focusing on making the land greener like many environmental activists, ecologically conscious design firm Salt & Water is attempting to make the water greener with the Eco Barge. Designed to float along the Danube river in Belgrade, Serbia, the Eco Barge comprises a small greenhouse and hut on which urban farmers can grow organic produce.

Powered exclusively with solar panels and miniature wind turbines, the barge emits no greenhouse gasses while simultaneously emitting plentiful greenhouse fruits, vegetables and plants.

The Eco Barge is also intended as a place for urban farming workshops. Its mobility allows the operator to move the barge to different points along the waterway, picking up tutees and teaching them about vertical gardens, irrigation systems and more.