Ancient Ice Uncovers 3 Million-Year Climate Mystery

本站添加: 2026-05-06

[00:00:00]Ancient Antarctic ice reveals a surprising 3 millionyear climate mystery. Scientists have just uncovered a climate mystery hidden in Antarctic ice that dates back 3 million years.

[00:00:15]They found tiny pockets of ancient air and rare gases, revealing that while the planet cooled significantly, levels of greenhouse gases like carbon dioxide and methane changed only slightly. This surprising finding indicates that other factors such as shifting ice sheets and ocean circulation played a major role in long-term climate change. For instance, average ocean temperatures have dropped by about 2 to 2.5° C over this period. Another discovery