This video is narrated by Prof Antony Long a lead researcher on IHRR’s Tipping Points project. In the first episode of this series, scientists travel to Greenland to collect artefacts (insects and pollen grains) that will help them uncover the mystery of a rapid cooling event that took place in the North Atlantic around 5000 years ago. The research team is investigating climate change events of the past in order to reveal how the Earth’s climate systems may change in the future. They are attempting to answer a number of puzzling questions about the Earth’s past climate including why did the climate change during the middle of the Holocene between 4000-6000 years ago? Did this sudden shift in Earth’s climate take place everywhere at once, or did the climate change begin in one place and spread to different areas? And do linkages exist between different parts of the Earth’s ocean-atmosphere system? Answers to these questions will likely help us better understand rapid climate change taking place today and in the future.