Subantarctic seabed creatures shed new light on past climate

A new marine biodiversity study in one of the largest Marine Protected Areas in the world reveals the impact of environmental change on subantarctic seabed animals and answers big questions about the extent of South Georgia's ice sheet during the Last Glacial Maximum around 20,000 years ago.Reporting this week in the Journal of Biogeography researchers at British Antarctic Survey (BAS) describe how colonies of seabed creatures, such as sea sponges – that play an important role in absorbing and storing carbon from the atmosphere – can take thousands of years to recover from major glaciation events.

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