SOIL is working in Haiti to design, test, and implement social business models to increase access to sanitation services. When the business model is right, anything can be a valuable asset, even human waste. SOIL uses a business model that provides sanitation services, improves soil fertility, and creates livelihoods in Haiti. SOIL collects human waste and transforms it into compost that can be safely used in agriculture. Ecologist Sasha Kramer of SOIL describes her work this way. “We are taking human waste, something that is one of the largest factors in public health issues in the world. And, we are transforming it into something that I, as ecologist thinks is…