Using a new technique that involves Arctic fossil records, scientists from the University of Buffalo have determined that over the last 10,000 ears, the Greenland Ice Sheet was actually at its smallest size between three and five thousand years ago.
The research team also found that on land the atmosphere was warmest between five and nine thousand years ago, which does not match up with the time when the ice sheet was at its smallest size.
However, over the past 10,000 years the oceans were also at their warmest state between three and five thousand years ago, which indicates that ice sheets might really respond to ocean temperatures.
Excerpt from the University of Buffalo News report....
"Traditional approaches have a difficult time identifying when ice sheets were smaller," said Jason Briner, PhD, University at Buffalo associate professor of geology, who led the study. "The outcome of our work is that we now have a tool that allows us to see how the ice sheet responded to past times that were as warm or warmer than present - times analogous to today and the near future."
The technique the scientists developed involves dating fossils in piles of debris found at the edge of glaciers.
This study was published in the journal Geology.
What happens to the glacial meltwater from Greenland when it enters the ocean?
New NASA mission is mapping critical sections of the Greenland ice sheet in order to have a better understanding of current and future global sea level rise.
The string of record-breaking, monthly average temperatures continues for the globe.
Climate models have significantly underestimated the future rise in global temperature, assuming greenhouse gas emissions continue to rise as expected, according to a new study.
Arctic sea ice continues to trend younger and thinner.
New research indicates that future sea-level rise over the next 100 years could end up being as much as two times higher than the most recent estimates from the Intergovernmental Panel on Climate Change.