Past climate change and continental ice melt linked to varying carbon dioxide levels
Wednesday, October 15, 2014 - 12:01
in Earth & Climate
Scientists have discovered that a globally warm period in Earth's geological past featured highly variable levels of CO2. Previous studies have found that the Miocene climatic optimum, a period that extends from about 15 to 17 million years ago, was associated with big changes in both temperature and the amount of continental ice on the planet. Now a new study has found that these changes in temperature and ice volume were matched by equally dramatic shifts in atmospheric CO2.