Question
What is ice coring programme ? How do they help us know about the climate of earth in the past ?
Solution
With a view to get a dependable picture of climatic changes in the past, ice coring programmes have been undertaken in several countries particularly in Antarctica and Greenland ice caps to analyse the tapped gases during the last 1,00,000 years. Ice core suggests that cooling trend in the Northern Hemisphere Started from 1725 to 1920. It inferred from the study of oxygen isotopes record in Greenland.
