1. Department of Physical Geography and Ecosystem ScienceLund University, Lund, Sweden
2. Department of Geological Sciences and the Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
3. Department of GeographySwansea University, Swansea, United Kingdom
4. Centre for Studies of Carbon Cycle and Climate Interactions (LUCCI), Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden