China's Meteorological Department has issued a warning about a prolonged heat wave expected to affect the east, central, and southern regions in July, threatening rice and cotton production. Areas like Zhejiang, Jiangxi, Hunan, Fujian, Guangdong, Guangxi, Gansu, and Ningxia will see temperatures 1 to 2 degrees Celsius above average. This extreme weather, driven by global climate change, has already impacted major grain-producing provinces and is straining global food supplies. The CMA's annual climate 'Blue Book' forecasts significant temperature rises over the next 30 years, particularly in eastern China and northwestern Xinjiang. Additionally, two typhoons may hit the Chinese mainland in July.