Donate

Tag: ice cores

South American Peaks Contain 2000-Year Record of Lead in the Air

KQED Science | March 12, 2015 | 0 Comments

South American Peaks Contain 2000-Year Record of Lead in the Air

New data from the ancient ice of a tropical glacier shows that lead in gasoline tainted the Earth with the toxic metal far more than any other source, past or present, human or natural.

Continue Reading

Where Should We Look for the World’s Oldest Ice?

KQED Science | November 7, 2013 | 0 Comments

Where Should We Look for the World’s Oldest Ice?

Ancient ice is an important source of information about global climates of the past. Although the ice itself is a valuable record, the real prize is the air bubbles preserved in it, some that could be as much as 1.5 million years old.

Continue Reading