Large-Scale Production of Biofuels Made From Algae Poses Sustainability Concerns;
Further Innovations Needed to Reach Full Potential
Scaling up the production of biofuels made from algae to meet at least 5 percent -- approximately 39 billion liters -- of U.S. transportation fuel needs would place unsustainable demands on energy, water, and nutrients, says a new report from the National Research Council. However, these concerns are not a definitive barrier for future production, and innovations that would require research and development could help realize algal biofuels' full potential.
Biofuels derived from algae and cyanobacteria are possible alternatives to petroleum-based fuels and could help the U.S. meet its energy security needs and reduce greenhouse gas emissions, such as carbon dioxide (CO2). Algal biofuels offer potential advantages over biofuels made from land plants, including algae's ability to grow on non-croplands in cultivation ponds of freshwater, salt water, or wastewater.