Climate change is no longer a distant threat but a pressing reality reshaping global agricultural landscapes. Extreme weather events, shifting rainfall patterns, and rising temperatures are challenging the stability of grain production systems worldwide, making grain security a paramount concern for nations. In this context, the transition to green, low-carbon agriculture has emerged as both a strategic response to climate risks and a cornerstone for safeguarding long-term grain security. By integrating technological innovation with policy support, this transformation aims to build agricultural systems that are low-carbon, efficient, and sustainable—ultimately fortifying our ability to feed growing populations amid uncertainty.