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World's oldest ice core could stretch back 5 million years
World's oldest ice core could stretch back 5 million years,One of the best ways to analyze Earth's past climate is with samples drilled from deep ice cores. Now, scientists have dated what may be the world’s oldest ice core, with some sections potentially preserving samples as old as 5 million years.

World's oldest ice core could stretch back 5 million years

One of the best ways to analyze Earth's past climate is with samples drilled from deep ice cores. Now, scientists have dated what may be the world’s oldest ice core, with some sections potentially preserving samples as old as 5 million years.