Evidence buried in Greenland’s bedrock shows that the Greenland Ice Sheet nearly disappeared for an extended time in the last million years or so.
Tag: sea level rise
Figuring out how far sea level rose during past warm periods in Earth’s history starts with a walk on the beach, a keen eye for evidence of ancient shorelines, and a highly accurate GPS system.
Geologist Alessio Rovere and Trinity Mensah-Senoo walk along a beach in Ghana gathering data that will be used to monitor coastal erosion.
Lamont marine geologist and paleoclimatologist Maureen Raymo studies ancient shorelines to understand how high seas rose in the past, and how high they might climb in the future.
In a new study, Lamont’s Michael Previdi and Lorenzo Polvani found that the effect of rising temperatures on snowfall in Antarctica has so far been overshadowed by the frozen continent’s large natural climate variability.
Humans have been burning fossil fuels for only about 150 years, yet that has started a cascade of changes that will still be felt 10,000 years from now.
A new study uses sediment cores to track the expansion and retreat of glaciers through time and finds they are more sensitive than realized.