Importance of Life Cycle Assessment of Renewable Energy Sources.- Key Issues in Conducting Life Cycle Assessment of Renewable Energy Sources.- Life Cycle Assessment of Agricultural Production Systems with Main Emphasis in Biogas and Bioethanol Production.- Life Cycle Assessment of Biomethane from Lignocellulosic Biomass.- Life Cycle Assessment of Biodiesel from Palm Oil.- Environmental Sustainability Assessment of Ethanol from Cassava and Sugarcane Molasses in a Life Cycle Perspective.- Comparison of Algal Biodiesel Production Pathways using Life Cycle Assessment Tool.- Sustainability of (H2+CH4) by Anaerobic Digestion via EROI approach and LCA evaluations.- Life cycle assessment of wind energy.- Comparing various indicators for the LCA of residential photovoltaic systems.- Hydropower Life-Cycle Inventories: Methodological Considerations and Results Based on a Brazilian Experience.- Comparison of Various Life Cycle Assessment of Different Renewable Energy Sources.