The Alfred Wegener Institute carries out research in the Arctic and Antarctic as well as in the high and mid latitude oceans. The institute coordinates German polar research and makes available to national and international science important infrastructure, e.g. the research icebreaker “Polarstern” and research stations in the Arctic and Antarctic.
20. November 2014: Permafrost soil is possible source of abrupt rise in greenhouse gases at end of last ice age
Scientists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) have identified a possible source of carbon dioxide (CO2) and other greenhouse gases that were abruptly released to the atmosphere in large quantities around 14,600 years ago. According to this new interpretation, the CO2 – released during the onset of the Bølling/Allerød warm period – presumably had their origin in thawing Arctic permafrost soil and amplified the initial warming through positive feedback. The study now appears online in the journal Nature Communications.
10. November 2014: How variable are ocean temperatures?
The earth’s climate appears to have been more variable over the past 7,000 years than often thought. A new study forthcoming online this week in the U.S. scientific journal “Proceedings of the National Academy of Sciences” (PNAS) shows significant differences between climate archives and climate models.