1. Department of Geosciences and Geography University of Helsinki Helsinki Finland
2. Department of Earth Sciences Uppsala University Uppsala Sweden
3. Geological Survey of Finland Espoo Finland
4. Finnish Meteorological Institute Climate System Research Helsinki Finland
5. Department of Geosciences University of Oslo Oslo Norway
6. Key Laboratory of Vertebrate Evolution and Human Origin of the Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing China
7. CAS Center for Excellence in Life and Paleoenvironment Beijing China
8. University of Chinese Academy of Sciences Beijing China
9. Norwegian Meteorological Institute Oslo Norway