Greenland ice cores show industrial record of acid rain

The rise and fall of acid rain is a global experiment whose results are preserved in the geologic record.

Tropical Peruvian ice cores yield important environmental data

Two annually dated ice cores drawn from the tropical Peruvian Andes reveal Earth’s tropical climate history in unprecedented detail - year by year, for nearly 1,800 years.

Ancient ice cores give clues to effects of global warming

A new study indicates that the last interglacial period may give us a picture of where the planet is headed now, as greenhouse gases increase and temperatures rise.