1 British Antarctic Survey (BAS), Natural Environmental Research Council (NERC), High Cross, Madingley Road, Cambridge, CB3 0ET, UK. [email protected].
2 Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky-Str. 9-11, 26133, Oldenburg, Germany. [email protected].
3 Department of Geosciences, Bremen University, Klagenfurter Str. 2-4, 28359, Bremen, Germany. [email protected].
4 British Antarctic Survey (BAS), Natural Environmental Research Council (NERC), High Cross, Madingley Road, Cambridge, CB3 0ET, UK.
5 School of Geography, Politics and Sociology, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK.
6 Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky-Str. 9-11, 26133, Oldenburg, Germany.
7 Department of Geography, Northumbria University, Ellison Building, Newcastle-upon-Tyne, NE1 8ST, UK.
8 Institute of Botany, Polish Academy of Sciences, ul. Lubicz 46, 31-512, Kraków, Poland.
9 School of Earth and Ocean Sciences, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
10 NERC Radiocarbon Facility (Environment), Scottish Enterprise Technology Park, Rankine Avenue, East Kilbride, Scotland, G75 OQF, UK.
11 Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, SY23 3DB, UK.
12 Department of Geography, Science Laboratories, Durham University, South Road, Durham, DH1 3LE, UK.