Ocean acidification, the change in ocean chemistry driven by increasing atmospheric CO2 levels, is one of the biggest threats to our oceans. It is happening first and fastest in the Arctic Ocean. The Catlin Arctic Survey was an exciting multidisciplinary expedition, in which scientists and explorers investigated ocean acidification processes and their impact on marine organisms.

In this talk, Ceri shares her stories of this exciting field work, which involved camping on the sea ice in unheated tents at -40°C while collecting vital data.  She speaks about the importance of the science conducted on this expedition, the challenges of working at a low temperature and key findings of her work. Ceri used the compelling story of her Arctic expedition to communicate the ocean acidification message to schools and the general public. She shares her experiences of communicating marine issues more widely, and stresses the importance of wider awareness in the context of the current change observed in the world’s oceans.

Previously this series of talks was under the branding of Intrepid Explorers Exeter


Ceri Lewis

Senior Lecturer in Marine Biology
University of Exeter

Ceri Lewis is an experienced marine biologist conducting research into how marine animals respond to environmental change, such as ocean acidification and plastic pollution. She graduated from Swansea University and did her PhD at Newcastle University before heading off to Cape Town for a 3 year research post. Ceri joined the Catlin Arctic Survey in 2010 and 2011 to study ocean acidification processes in the High Arctic.