The study by Peng et al. (2004) examines the impact of global warming on rice yields, focusing on temperature trends and their relationship with rice grain yield. Using data from the International Rice Research Institute Farm in the Philippines from 1979 to 2003, the researchers found that annual mean maximum and minimum temperatures increased by 0.35°C and 1.13°C, respectively, over the 25-year period. The increase in minimum temperature was significantly greater than that of maximum temperature, consistent with global trends. The study revealed a strong negative correlation between rice grain yield and mean minimum temperature during the dry cropping season (January to April), with a 10% decline in grain yield for each 1°C increase in growing-season minimum temperature. However, the effect of maximum temperature on crop yield was insignificant. This direct evidence supports the hypothesis that increased nighttime temperatures associated with global warming are responsible for reduced rice yields. The findings highlight the need for further research to understand the physiological mechanisms behind these changes and to refine crop growth models to better simulate the impacts of climate change.The study by Peng et al. (2004) examines the impact of global warming on rice yields, focusing on temperature trends and their relationship with rice grain yield. Using data from the International Rice Research Institute Farm in the Philippines from 1979 to 2003, the researchers found that annual mean maximum and minimum temperatures increased by 0.35°C and 1.13°C, respectively, over the 25-year period. The increase in minimum temperature was significantly greater than that of maximum temperature, consistent with global trends. The study revealed a strong negative correlation between rice grain yield and mean minimum temperature during the dry cropping season (January to April), with a 10% decline in grain yield for each 1°C increase in growing-season minimum temperature. However, the effect of maximum temperature on crop yield was insignificant. This direct evidence supports the hypothesis that increased nighttime temperatures associated with global warming are responsible for reduced rice yields. The findings highlight the need for further research to understand the physiological mechanisms behind these changes and to refine crop growth models to better simulate the impacts of climate change.