CL
Climate: Past, Present & Future

Isabelle Couchoud

Isabelle Couchoud is an Associate Professor in Paleoclimatology at Université Savoie Mont Blanc, France. She specialises in speleothem-based climate reconstructions. Her research focuses on understanding past climate variability and environmental change through high-resolution geochemical analyses and multi-proxy approaches.

When a major climate event goes almost unnoticed: the elusive 8.2 ka signal in southern France stalagmites

When a major climate event goes almost unnoticed: the elusive 8.2 ka signal in southern France stalagmites

  Around 8,200 years ago, the climate of the Northern Hemisphere experienced an abrupt disturbance. In Greenland ice cores, the signal is unmistakable: a rapid drop in temperatures, followed by a gradual return to previous conditions. This episode, which lasted about 150 years, is known as the 8.2 ka event (“ka” meaning thousand years before 1950). It is often described as the most prominent ...[Read More]