| | Category | EAEV | L17 | Roof Design that Collects all Precipitation and Natural Fertilizer |
| | Abstract | The purpose of this invention is to utilize the greatest amount of water |
| | and natural fertilizer to grow crops using a hydroponic system in areas |
| | that do not have the preferred conditions to grow plants. Through this |
| | structure, the 795 million people that live in hunger in the world today |
| | can be helped because the countries can now grow their own food in |
| | many different climate types. By using this invention on top of buildings, |
| | the structure would not take up any extra space. The structure can be |
| | modified to work in any part of the world: cold, hot, dry, or wet. If it is |
| | used in a cold region, heat vents can be opened from the building |
| | below. Heat rises, melting the snow, and creating a water source. If the |
| | structure is used in a wet area, then overflow spouts can be installed in |
| | the first holding tank. The design of this structure naturally draws in |
| | pigeons, which act as the fertilizing source. The rainfall then washes the |
| | pigeon feces down to the pipes which lead to the holding tank. The |
| | water is constantly churning in the holding tanks so the pigeon feces |
| | break down creating a nutrient rich solution which then flows through |
| | the hydroponic system. The pipes are built at a slight downward angle, |
| | so gravity causes the water to flow through the system. No extra energy |
| | is required. Once the water makes its way through the system, it flows |
| | into another holding tank with a water pump, which then pumps it back |
| | up to start the process over again. This way there is not a shortage of |
| | water, because the water is being reused. |
| | Bibliography | Hunger Statistics | WFP | United Nations World Food Programme - |
| | Fighting Hunger Worldwide. (2017). Retrieved February 01, 2017, from |
| | https://www.wfp.org/hunger/stats Hydroponic Systems 101. (n.d.). |
| | Retrieved October 23, 2016, from |
| | http://www.fullbloomhydroponics.net/hydroponic-systems-101/ |