Dossier
ice sheets
Coverage of ice sheets in the Nexus archive.
- Scientists just uncovered a 3 million-year climate mystery in Antarctic ice
Scientists discovered a 3 million-year-old climate mystery in Antarctic ice, revealing that Earth's significant cooling, especially in oceans, occurred alongside only modest changes in greenhouse gases like carbon dioxide and methane. This suggests other factors, such as ice sheets, ocean circulation, and Earth's reflectivity, played major roles in long-term climate change.