The quest for sustainable aviation fuel has a critical question at its core: how do we replace fossil carbon without jeopardizing food security and biodiversity? My journey leads me to an intriguing answer - sugarcane.
At the ARC Research Hub, we're on a mission to engineer plants that can replace fossil carbon, and we're doing it with the latest scientific advancements and global collaboration. Our goal is ambitious yet necessary - to create renewable aviation fuel that is not only environmentally friendly but also economically viable.
Sugarcane: The Sweet Solution
Sugarcane stands out as the ideal candidate for this transformation. It's the only crop currently produced at the massive scale required for aviation fuel, and its economics make sense. Other options, like algae, may sound appealing, but the costs are prohibitive without generating high-value co-products.
Canola, another international contender, faces similar challenges. Australia's canola exports to Europe for fuel production raise food security concerns, and the scale required is staggering - it would need an area larger than Australia to replace jet fuel.
Land Use: A Critical Factor
Land use efficiency is key. Sugarcane's exceptional productivity and relatively small land footprint make it an obvious choice. Our research at the Hub is focused on enhancing plant biomass conversion into fuel. We're exploring genetic modifications in rice, sorghum, and sugarcane to increase the portion of biomass that can be converted without reducing yield.
Rice serves as our model system due to its genetic manipulability. Once we identify successful genetic changes in rice, we'll test them in sorghum, sugarcane's closest relative, and then transfer the most promising alternatives to sugarcane itself. This step-by-step approach is efficient and increases our chances of success.
Australia's Unique Advantage
Australia, and Queensland specifically, are perfectly positioned to lead this sustainable revolution. We have a robust sugarcane industry, strong research capabilities, and global partnerships that can accelerate innovation. With Australians being among the world's most frequent flyers, the demand for sustainable aviation fuel is immense. If we can commercialize sustainable fuel production, as we're on track to do, the world will follow suit.
The Challenge Ahead
The challenge is clear: breed crops with high convertible biomass proportions without sacrificing yield. It's a complex puzzle, but one with immense potential. Sugarcane offers a sweet spot - it's productive, sustainable, and scalable. If we succeed, Australia won't just be a part of the solution; we'll be at the forefront, leading the way towards a greener future.
Professor Henry's insights provide a compelling roadmap. Read more about his perspective in Agriculture Communications.
