The study explores the interrelationships between environmental concern knowledge, beliefs about and behavioral intention for bio-fuels. Data was collected from 1,695 respondents. Hypotheses were based on literature, and a conceptual model was tested through SEM. Results show that environmental concern has a positive and direct impact on knowledge, beliefs and intention. Demographics determine levels of concern and knowledge. All constructs associate with each other positively. Future research should validate results using cross-cultural samples. By examining the effect and interrelationships of environmental concern, knowledge and beliefs on behavioral intention for bio-fuels the study adds to the evolving literature on green consumer behavior.