OMG science
fromNature
1 day agoIce core reveals longest-ever continuous record of Earth's climate
A 1.2-million-year Antarctic ice core links atmospheric CO2 changes to global temperature shifts across repeated climate cycles.
Recent examination of some ancient rocks from the west coast of Scotland have now overturned that thinking, suggesting there were periods during snowball Earth when the climate woke up. Close-up views of thin, repeating rock layers known as varves, each thought to represent a single year of sedimentation during the snowball Earth period.