"The Earth's system is kind of a sluggish beast. It takes a while for the ocean and atmosphere to respond to this rapid rise in carbon dioxide," Brigham-Grette said.
Brigham-Grette said this paper provided an overview of this part of the sediment core, a sort of "companion piece" to the results from the earlier part of the record published last year.
The team will now start teasing out more details from the core, using new techniques such as one that looks at fossil leaf wax in the core to learn more about precipitation in the past.
Another area of interest is understanding what was happening in Antarctica at the same time in history. This might help scientists understand how different parts of the globe react to climate change.
"One of the things that we are interested in is trying to determine how widespread climate change affects regional stories," Brigham-Grette said.
Reprinted from Climatewire with permission from Environment & Energy Publishing, LLC. www.eenews.net, 202-628-6500