Antarctic ice cores

Antarctic ice cores are cylindrical samples drilled from ice sheets in Antarctica. They contain layers of ice formed over thousands of years, trapping air bubbles, dust, and other particles. By analyzing these layers, scientists can reconstruct past climate conditions, such as temperature and atmospheric composition. Each layer corresponds to a specific year or period, allowing researchers to study changes in Earth's climate over time. Ice cores are vital for understanding natural climate variability and human impacts on global warming, helping inform climate policies and predictive models.