Overview

• Ice core samples from Greenland provide data spanning 120,000 years, highlighting abrupt climate changes known as Dansgaard-Oeschger events.
• These events are tied to rapid shifts in the Atlantic Meridional Overturning Circulation (AMOC), affecting global weather patterns.
• The AMOC's instability caused significant cooling in Europe and disrupted monsoons in Asia during the last Ice Age.
• Current climate models suggest the AMOC may weaken again due to global warming, potentially impacting billions worldwide.
• The study's findings emphasize the importance of understanding climate tipping points to prevent catastrophic and irreversible changes.