Wandering Icebergs
Alfred Wegener Institute (AWI)
Published: 14 January 2021
During past glacial periods, Antarctic icebergs drifted much farther north due to extended sea ice and calmer seas, altering ocean stratification and affecting global climate patterns, including heat and CO₂ absorption in the Atlantic.
Keywords: icebergs, glacial period, Atlantic Ocean, freshwater transport, ocean stratification, iceberg drift, sea ice, Pleistocene
One-two punch against corals: how stress factors interact
Alfred Wegener Institute (AWI)
Published: 28 January 2021
A new study finds that rising ocean temperatures weaken corals' ability to adapt to acidification, compounding threats to reef survival. This “double stress” may outpace corals’ ability to adapt, highlighting urgent need for protective measures.
Keywords: corals, ocean acidification, global warming, coral bleaching, reef collapse, calcium carbonate, marine ecosystems, adaptation
The Arctic Ocean was covered by a shelf ice and filled with freshwater
Alfred Wegener Institute (AWI)
Published: 3 February 2021
New research shows the Arctic Ocean was freshwater under thick ice twice in 150,000 years. Sudden releases may explain past abrupt climate shifts, reshaping sea level and climate models.
Keywords: Arctic, freshwater, ice sheet, tipping point
