Christopher Hailstone joins us to discuss a pivotal shift in maritime logistics: the recognition of Brazilian second-crop corn ethanol as a low-carbon powerhouse. With the International Maritime Organization setting a specific benchmark, we explore how this fuel is transitioning from a regional staple to a global shipping solution. Our conversation covers the technical benchmarks that set it apart from traditional fuels, the explosive growth of South American production, and the innovative carbon capture technologies that could revolutionize the industry’s environmental impact.
The International Maritime Organization recently established a carbon intensity value of 20.8 for Brazilian second-crop corn ethanol. How do you see this benchmark reshaping the landscape of global shipping emissions?
This decision is a historic milestone for the maritime sector because it provides a clear, data-driven pathway for decarbonization. When you compare that 20.8 grams of CO2-equivalent per megajoule to the current global shipping average of 93.3 grams, the potential for impact is staggering. It essentially validates Brazilian corn ethanol as a premium, low-emission alternative that can compete on a global stage. We are seeing a symbolic shift where traditional bunker fuels are finally being challenged by sustainable biofuels that offer a massive reduction in greenhouse gas intensity.
While sugarcane has traditionally led the way in Brazil, corn ethanol is seeing a meteoric rise. What does this production surge look like in terms of scale and market readiness?
The growth we have witnessed in the corn ethanol sector is remarkable, jumping from a modest 2.65 billion liters at the start of the decade to an estimated 10 billion liters for the 2025/26 season. This rapid scaling shows that the infrastructure is maturing quickly and is ready to handle the demands of international trade. Industry leaders are no longer looking at this as a niche product but as a core component of the global energy mix. This volume is essential because it provides the reliability that shipping fleets need when considering a long-term transition away from fossil fuels.
What specific operational advancements are allowing producers to push for even lower carbon footprints, and how close are we to carbon-negative ethanol?
Producers are moving far beyond simple processing improvements by integrating high-level industrial efficiencies and biomass energy. One of the most exciting developments is the focus on bioenergy with carbon capture and storage, or BECCS, which has the potential to push production into carbon-negative territory. By capturing CO2 during the fermentation process and storing it underground, facilities can actually remove more carbon from the atmosphere than they emit. This level of technical sophistication is what will allow these producers to access premium markets that prioritize the highest environmental standards.
Given the massive scale of the global bunker fuel market, how do you expect corn ethanol to coexist with other biofuels like sugarcane or biodiesel?
The scale of the global bunker fuel market is so immense—estimated at an equivalent of nearly 400 billion liters—that there is no need for internal competition between different biofuels. Brazilian second-crop corn ethanol is expected to complement sugarcane ethanol and biodiesel rather than replace them. The demand is simply too high for any single source to satisfy, allowing each fuel type to find its own niche within the shipping industry’s transition. This synergy is vital for ensuring energy security while simultaneously meeting the IMO’s increasingly strict environmental regulations.
What is your forecast for the integration of Brazilian corn ethanol into the global maritime sector over the next decade?
I expect to see a rapid acceleration in adoption as shipping companies strive to meet the new carbon benchmarks set by international regulators. Over the next ten years, we will likely see specialized logistics hubs emerging to handle these high volumes, supported by the nearly 10 billion liters being produced annually in Brazil. As carbon capture technology matures, the “gold standard” for maritime fuel will shift toward these low-intensity options, making corn ethanol a cornerstone of sustainable global trade. This transition will be driven by both the necessity of compliance and the undeniable efficiency of this renewable resource.
