O16

Earth’s ice cores preserve climate history of million of years. Most of the ice cores are taken from the ice deposited in Antarctica and Greenland. Some interesting facts… Ice cores have been preserved in US National Ice Core Library (NICL) in Denver Colorado. Oldest ice core record kept there is 420000 years old. There are ice cores which have been collected and preserved from a single hole 3.6 kilometres. Total length of all the ice core samples preserved in the NICL is 20 kilometres. How do these ice cores help in delineating the climate at that period of time. Dust… Read More »Earth’s Ice Records