RCI Affiliate Liz Sikes is an Associate Professor in the Department of Marine and Coastal Sciences. The unifying theme in her work is carbon cycling. It is well known that Southern Ocean is the place where the ocean exhales. As a paleoceanographer, she investigates past circulation changes in the Southern Pacific Ocean to determine how this traps and releases CO2 from the deep ocean on glacial time scales. She is also studying past sea surface temperature changes in the oceans around New Zealand and Australia. On shorter timescales, she examines sources, pathways, and sinks of both terrestrial and marine carbon in modern environments with an eye to their interaction with coastal ocean acidification. To do this, she uses several isotopic and organic geochemical techniques to answer questions of sea surface temperature and global circulation change. Learn more about Liz's research and teaching here.