Evan Stephens, Rocky de Nys, Ian L Ross and Ben Hankamer
Here we examine the scale of petroleum consumption and the current lack of scalable petroleum alternatives. We highlight the contribution that macroalgae and microalgae can collectively make as feedstocks in the future energy mix, discuss recent advancements and current development pathways, and consider the potential and the limitations of these production systems for economic and environmental sustainability moving towards a scale of 10-20% of global petroleum consumption.