Scientists drill nearly 2 miles down to pull 1.2 million-year-old ice core from Antarctic
An international team of scientists announced Thursday they’ve successfully drilled one of the oldest ice cores yet, penetrating nearly 2 miles (2.8 kilometers) to Antarctic bedrock to reach ice they say is at least 1.2 million years old. Analysis of the ancient ice is expected to show how Earth’s atmosphere and climate have evolved. That…