The document discusses sustainable development issues facing Bundu Tuhan highlands in Sabah, Malaysia. Farming in the area is facing problems like usage of chemical inputs causing land and water pollution. The objectives are to identify farming problems, understand why NGO projects have less success, and how leadership and sustainability concepts can contribute to environmental sustainability and farmers' well-being. Research findings show farming problems include pests, weeds, marketing, and lack of education. Potential solutions include sensitizing farmers, improving market access, regulations on environment protection, and subsidies from the Department of Agriculture.