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Kenya, Lake Naivasha, Rift Valley. Dr. David M. Harper .Senior Lecturer, Ecology & Conservation Biology [from the University of Leicester UK], on the shores of Lake Naivasha...|| For 30 years, Harper explores the sensitive .ecosystem protected by the United Nations. For years, the concentration of nutrients in the water increases. Remains of the flower industry, fertilizers, small farmers, and the raw sewage of the people who settle near the lake pose an increasing problem..At the same time the water level drops since the lake has to provide too much water. to the flower farms. "This lake .is getting toxic, and this lake runs dry, "saiys Harper. In many places the lake is only a brown broth..The flower industry facing accusations by the environmental groups and workers unions from unsafe working conditions to low wages to reckless environmental practices, as contributing massively to the depletion of the Lake Naivasha eco-system through their cultivation methods; horticulture still continues to be one of the fastest growing sub sectors in Kenya's export sector, growing at over 7% annually. The Kenya Flower Council, KFC, says the accusations are not un-warranted since a number of renegade-investors had declined to adhere to standardised protocols that was leading to the degradation of the lakes eco-system.. A struggle to protect wildlife, water and a rapidly expanding human population, who are desperate to feed their families, has increased tension in the area. (KEYSTONE/LAIF/Hans-Juergen Burkard)