Scientists have successfully analyzed ancient ice from Antarctica and the air bubbles trapped within it, extending Earth's climate records back 3 million years. The new analyses are providing researchers with expanded insights into how the planet's climate systems have evolved over this extended timeframe.
These ice core studies represent a significant expansion of the historical climate data available to scientists. By examining both the ice itself and the ancient air contained within it, researchers can reconstruct past atmospheric conditions and track long-term climate patterns that predate previous records.