冷冬预警来了科学家称地球正处于大冰期，全球变暖或暂停2

The Earth is currently experiencing a "Big Freeze", causing significant transformations in its landscape. While not leading to mass extinction, it forced species to adapt to places like East Asia and the eastern US. Scientists debate whether we"re still in the Fourth Grand Ice Age, with some suggesting unpredictable ice age cycles and predictions of a next ice age in 90,000 years.