In September 2023, a significant landslide in Greenland's Dickson Fjord, triggered by glacier melting due to climate change, caused a mega-tsunami that reverberated through the Earth's crust for nine days. The event, which released a 200-meter-high wave, generated a long-lasting seismic signal recorded globally, baffling scientists. Researchers from University College London and other institutions used a mathematical model to recreate the landslide and the fjord's dynamics, revealing that the resulting waves, moving back and forth every 90 seconds, matched the recorded seismic data. The study, published in Science, highlights the intricate connections between climate change and geological events, suggesting such occurrences could become more frequent as the planet warms. Although there were no injuries, the waves caused substantial damage to a research station on Ella Island. This event marks the first time that water sloshing has been recorded as global seismic vibrations lasting several days.