This book examines the background of fourth-generation biofuel production, use of genetically modified microalgae for production of fourth-generation biofuels; cultivation and harvesting of genetically modified microalgae; residue from biofuel extraction; health and environmental concerns of fourth-generation biofuels; regulations on cultivation and processing of the genetically modified algae; carbon dioxide sequestration; water footprint and current status and key challenges. The topic ca ...