Water hyacinth, an invasive species in (sub-)tropical inland waterbodies, clogs waterways and intakes and affects aquatic life and human activities, and may facilitate the spread of diseases. On the other hand, water hyacinth can be exploited for biofuel production and other sources of income. A sustainable solution to water hyacinth infestation “uses” WHY instead of only attempting to “lose” them. This project will use scientific research, satellite data, and stakeholder experiences to co-create such solutions for Lake Chivero, the main source of drinking water to Harare, capital of Zimbabwe.