While popular media, the news, and movies can sometimes use shifts in our weather and environment as the basis for dramatic disaster stories, scientific research often offers a more nuanced and interesting take on how our Earth’s systems operate. For instance, who can forget the 2004 disaster blockbuster movie The Day After Tomorrow which focused on the weakening of a major Atlantic Ocean circulation system, a topic that remains popular today?


In this Explorer Series lecture, researchers Gokhan Danabasoglu and Aixue Hu from NSF NCAR’s CGD Laboratory will explain what this major Atlantic Ocean current system, known as the Atlantic meridional overturning circulation, actually is and why we care about its behavior. They will then discuss what we know about its past and present changes, and what we can really say about its future behavior.