The most hazardous global warming risk for society at large is widespread loss of grain production because of a synchronized worldwide drought. It would be a colossal killer. It’s happened before, known as The Great Drought 142 years ago.
Unmistakably, droughts feed off global warming and world temps are heading up, not down. Thus, droughts are intensified by temperature increases. If the same conditions as the drought of 1876 recurs, it would likely be a nightmarish scenario.