The impacts of increasing atmospheric CO2 on the marine carbon cycle have been observed at all latitudes, and are postulated to become more pronounced. These changes are linked to physical mechanisms that regulate light, nutrients, temperature, mixing conditions and carbon chemistry.
My research explores the molecular, ecological and community response of two different ecosystems to changes in climate. At temperate latitudes I am investigating the survival of the marine seagrass Zostera marina L. at high temperatures and CO2 concentrations, and estimating seagrass productivity, carbon and landscape fragmentation from air- and space-borne sensors. At high latitudes I am examining the impact of increases in under ice light absorption and warming on the Arctic carbon cycle.