1. Department of Earth Sciences, Air water and Landscape; Uppsala University; Uppsala Sweden
2. Department of Aquatic Sciences and Assessment; Swedish University of Agricultural Sciences; Uppsala Sweden
3. Biological and Environmental Sciences; Faculty of Natural Sciences; University of Stirling; Stirling UK
4. NERC Radiocarbon Facility; Scottish Enterprise Technology Park; East Kilbride, Glasgow UK
5. Department of Forest Ecology and Management; Swedish University of Agricultural Sciences; Umeå Sweden
6. Department of Geography; Simon Fraser University; Burnaby BC Canada