Recently, some scientists have studied the impact of climate change on human society in the past. They found that more than 80% of countries and regions around the world broke out twice as many wars during the cold climate as during the warm period; in the past 1,000 years in China, War, large-scale turmoil and dynasty replacement mostly correspond to particularly long cold periods; the "Little Ice Age" in Europe from 1550 to 1850 and the witch-hunting events in European history and even the French Revolution are closely linked. As a result, they concluded that colder climates could lead to social conflicts and dynasties. Which of the following, if true, would most challenge the views of the aforementioned scientists? ['Climate change is always happening, social conflicts and dynasties are always happening, and things that change together are not necessarily causal.', 'Climate warming is an important cause of human conflicts and wars. For example, during the temperature rise from 1981 to 2002, the number of civil wars in sub-Saharan Africa increased more than usual.', "In 2003, the warming of the Indian Ocean affected monsoon activities, leading to a significant drop in precipitation in Sudan's Darfur region, triggering serious food and water shortages, and then triggering armed conflict.", "Chilling is more terrifying than climate warming, which means that crop yields are reduced, food and energy supplies are tight, and people's daily lives are more severely affected."]