THE CHAO TIAN MEN PORT OF CHONGQING CITY IS A VITAL HIGHWAY FOR THE IMPORT AND EXPORT OF FOOD BETWEEN OTHER CITIES AND TOWNS. THE EXPORT OF FOOD COULD BE AFFECTED BY THE IMPACT OF A CHANGING CLIMATE ON CROP YIELDS. AS NIGHT TIME TEMPERATURES INCREASE BY 1°C (1.8°F) RICE PRODUCTION IS ESTIMATED TO FALL BY 10%. THE CURRENT PREDICTION IS THAT AVERAGE TEMPERATURES ACROSS CHINA ARE EXPECTED TO RISE BY BETWEEN 3°C AND 4°C (5°F AND 7°F) BY THE END OF THIS CENTURY.