October 24, 2012- the science barge by Groundwork Hudson Valley - The Science Barge greenhouse, floating on the Hudson River, grows an abundance of fresh produce including tomatoes, melons, greens, and lettuce with zero net carbon emissions, zero pesticides, and zero runoff. All of the energy needed to power the Barge is generated by solar panels, wind turbines, and biofuels while the hydroponic greenhouse is irrigated solely by collected rainwater and purified river water, thus operating completely “off the grid.”