This study looked at how the distribution of double-cropping rice cultivation in China has changed over the past 50 years in response to climate change. By analyzing climate data from 1961 to 2010, researchers found that areas suitable for double-cropping rice shifted significantly. Regions with high climate suitability increased, while those with low suitability decreased. The most sensitive areas to climate changes were identified in central Jiangsu, central Anhui, eastern Sichuan, southern Henan, and central Guizhou. The northern boundary of double-cropping rice cultivation in China shifted southward in the 1970s, eastward in the 1980s, and northward in the 1990s, but did not respond to warming climates in the 2000s.