Ice Core

An ice core is a long cylinder of ice drilled from a glacier or ice sheet. It contains layers of snow and ice accumulated over thousands of years, preserving information about Earth's past climate. By examining these layers, scientists can analyze trapped gases, dust, and isotopes to interpret historical temperature changes, atmospheric compositions, and environmental conditions. Ice cores serve as valuable climate records, helping us understand long-term climate variations, natural cycles, and human impacts on the climate system.