2 Acknowledgments

We would like to thank all who have been involved in this project - the very enthusiastic and helpful Antarctica New Zealand Staff at both Christchurch and Scott Base; New Zealand Post for their support of the Antarctica New Zealand Postgraduate Award; Helicopter NZ staff, in particular Rob McPhearson; and those who were unlucky enough to be in the field when pit digging was underway, Jody Burton and Billy Wallace. This would also not be possible without the colaboration of staff at the Climate Change Center, University of Maine and National Isotope Center, GNS, Wellington, in particular Valerie Claymore. This project is supported by Victoria University of Wellington, Geological and Nuclear Sciences, and FRST (VUWX0704 and C05X0202 grants).