The bottle is first filled up with water and then placed upside down in the ground next to the plant. Because of its density the water is only released slowly into the ground to reach the roots.
Perspectives are different frameworks from which to explore the knowledge around sustainable sanitation and water management. Perspectives are like filters: they compile and structure the information that relate to a given focus theme, region or context. This allows you to quickly navigate to the content of your particular interest while promoting the holistic understanding of sustainable sanitation and water management.