Source: The Conversation
When visiting Godrevy beach on the north Cornish coast, most people look out to sea at the lighthouse, surfers and seals rather than the cliffs behind. But these cliffs hold a history of past climate and sea level that is incredibly valuable to scientists like me who are trying to determine how quickly sea level is going to rise in the future.
Analyses will help to reveal how far the West Antarctic Ice Sheet retreated in the past — and what it might do in the future.
Scientists have just got their hands on a 228-metre (748-foot) core sample from the muddy bedrock beneath West Antarctica’s chunky ice sheets. Inside the record-breaking sample, they discovered fossils of marine organisms that date from a time when this area was an open, ice-free ocean.