Biochar's impact on rice
−40%
reduction in methane emissions from flooded paddies
~10%
of global agricultural CH4 emissions come from irrigated rice
>60%
stable carbon content in silica-rich rice husk biochar
Rice's dual benefit
Rice is unique among tropical crops because biochar delivers a dual benefit: it increases yields (as with other crops) while simultaneously reducing greenhouse gas emissions from the soil.
Irrigated rice accounts for approximately 10% of global agricultural methane emissions — a significant share, given that methane has a global warming potential 28 times that of CO2 over 100 years. Any intervention that reduces those emissions while boosting productivity has exceptional climate value.
Rice husk — the abundant residue from rice mills — is the ideal feedstock for biochar used on the same crops, creating a direct circular model: rice husk → biochar → rice paddy.