The Antarctic is the vast source of cold on our planet, just as the sun is the source of our heat, and it exerts tremendous control on our climate," [Jacques] Cousteau told the camera. "The cold ocean water around Antarctica flows north to mix with warmer water from the tropics, and its upwellings help to cool both the surface water and our atmosphere. Yet the fragility of this regulating system is now threatened by human activity." From "Captain Cousteau," Audubon (May 1990):17.

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This quote from Jacques Cousteau highlights the importance of the Antarctic in regulating Earth's climate. It points out that the cold ocean water surrounding Antarctica flows northward and interacts with warmer water from the tropics. This mixing of waters helps cool both the surface water and the atmosphere.

However, the quote also mentions that human activity now poses a threat to the delicate balance of this regulating system.

To understand the impact of the Antarctic on Earth's climate and the significance of human activities, we can explore scientific research and expert opinions in the field of climatology and marine science. This requires analyzing and synthesizing information from various sources such as scientific articles, peer-reviewed journals, reports from reputable organizations, and interviews with climate scientists. This interdisciplinary approach allows us to gain a comprehensive understanding of the subject matter and its potential implications.