Thailand’s sugarcane fields stretch across nearly 2 million hectares, a golden sea of stalks that fuels both domestic demand and a booming export market. But beneath the rustling leaves lies a hidden cost: the sector is a significant source of greenhouse gases, from soil emissions to diesel-guzzling farm machinery. Now, a new study by Sahajanee Thaisonthi and her team at Chulalongkorn University’s Environment, Development and Sustainability program (EDS) offers a roadmap for cutting those emissions without breaking the bank.
Using a scenario-based approach, the researchers evaluated 11 mitigation technologies—from biofertilizers to solar-powered irrigation—assessing their cost-effectiveness through a marginal abatement cost curve (MACC). The findings, published in *Carbon Management*, reveal a striking disparity in outcomes depending on policy support and market conditions. Under the “Clear Sky” scenario, Thailand could slash up to 5.33 million metric tons of CO₂ equivalent annually, with abatement costs ranging from -$258 to $65 per ton of CO₂e. In other words, some measures not only pay for themselves but generate savings.
“This isn’t just about reducing emissions—it’s about unlocking new value in the agricultural supply chain,” says Thaisonthi. “When solar irrigation replaces diesel pumps, farmers cut fuel costs. When biofertilizers replace synthetic inputs, soil health improves and yields can stabilize. These are real commercial benefits, not just environmental ones.”
The study’s strength lies in its realism. Rather than assuming perfect adoption, it models four policy-relevant futures, showing how institutional support and financial incentives shape outcomes. Under less favorable scenarios, abatement potential drops sharply, underscoring the need for targeted public investment.
For the energy sector, the implications are clear. Thailand’s push toward low-carbon agriculture could create demand for renewable-powered irrigation, biofertilizer production, and precision farming technologies. It also signals a shift in how agricultural emissions are managed—not as an unavoidable cost, but as an opportunity for innovation.
As global buyers increasingly demand sustainable sourcing, Thailand’s sugarcane industry may find that cutting emissions isn’t just good for the planet—it’s good for business.