In Issue 010 we mentioned The Science Barge, a sustainable urban farm floating on the Hudson River in New York City. Powered by solar panels, wind energy, and biofuels, the Science Barge grows tomatoes, cucumbers, melons and lettuce with "zero net carbon emissions, zero chemical pesticides, and zero runoff." The engineers behind the barge preach the power of hydroponics: growing plants in a liquid solution rather than soil makes for sustainable agriculture that uses less land and water and can happen anywhere. They hope these efficient urban farms will take root on New York's rooftops. Last Saturday we invited our friends and readers to visit the barge with us. Here's a virtual tour.


The Science Barge's greenhouse grows enough veggies for 25-50 people for a year. It's all hydro.


The plants' roots draw directly from the nutrient-rich water that flows through these tubes. The water falls into a tank filled with living catfish. Then, replenished with nourishing catfish waste, it's pumped back to the plants. It's a closed loop.


Rainwater is used to flush the system periodically and for the greenhouse's evaporative cooling system. The water is caught on the greenhouse roof and stored below in these tanks.


The barge's solar panels follow the sun, making them 20% more efficient.


Field trippers enjoyed Smartwater, IZZE, Peak Organic Beer, free Urban Rustic Cafe & Market sandwiches, and Clif Bars. Thanks sponsors.