The ocean is our planet’s biggest and most important ally against climate change, playing a key role in regulating and redistributing heat, as well as storing large amounts of heat and carbon. In this episode, we investigate the Atlantic Ocean conveyor belt that moves warm water north and maintains Ireland’s mild climate, check out the latest Irish research monitoring changes in the Gulfstream and Jonathan meet the scientists at Met Éireann who are using supercomputers to produce climate models that are essential to understanding the ongoing impacts of the climate emergency.