Deep ice cores

Deep ice cores are long cylinders of ice drilled from the ice sheets in places like Antarctica and Greenland. They contain layers of snow that fell over thousands to hundreds of thousands of years. These layers trap tiny air bubbles, particles, and other substances that reveal past climate conditions, such as temperature and atmospheric composition. By analyzing these cores, scientists can reconstruct Earth’s climate history, understand natural climate variability, and study how greenhouse gases have changed over time. Deep ice cores are invaluable records that help us understand long-term climate change and predict future trends.