Fig. 1From: New feed sources key to ambitious climate targetsTotal annual primary energy production [EJ] through 2100 in the a BAU, b BioEnergy, c Alg-Fuel, and d Alg-Feed scenarios. Grey and black curves indicate historical data and projected demand, respectively. Colored numbers on the right display the primary supply of each energy source in EJ. Historical data from IEA used for calibration [39]Back to article page