This study aims to disseminate the Environmental Learning Model (ELM) to increase coastal residents' environmental knowledge as an effort to mitigate their environmental problems. The study provides appropriate learning materials, with categories including Mangrove Forest, Domestic Waste, Environmental Waste, and Livable Houses, which experts had previously validated. The ELM was applied to 36 fishermen in Luwu Raya, Indonesia. The results revealed that the ELM had improved the participants' environmental knowledge, especially in the areas covered by the taught materials. However, the ELM did not appear to immediately affect participants' attitudes toward mitigating environmental damage.