1. Centre for Arctic Gas Hydrate, Environment and Climate, Department of Geosciences, UiT; The Arctic University of Norway; Tromsø Norway
2. Department of Geology, Faculty of Science; Beni-Suef University; Beni-Suef Egypt
3. Department of Geography; University College London; London UK
4. Department of Physics and Astronomy; Aarhus University; Aarhus Denmark
5. Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences; University of Cambridge; Cambridge UK
6. Department of Earth and Environmental Sciences, Lamont-Doherty Earth Observatory; Columbia University; Palisades New York USA
7. Center for Marine Environmental Sciences (MARUM); University of Bremen; Bremen Germany