Which climate threats and climate changes are more obvious in America and the California region?
Parts of America, especially northern California, as well as the northern Gulf of Mexico and the Caribbean Sea, due to the blocking influence of Quebec and Noda in the form of Block Rex and Omega from the north to the south, cause severe storms and hurricanes and climatic hazards. In particular, they have experienced heavy rains that have led to floods, crop failures and food insecurity. On the other hand, heavy rainfall events have led to flooding in various areas, especially in low-lying areas and areas with poor drainage systems in low-lying areas of the United States of America. What are other threats and how is it related to food security?