'Weather records are preserved in these, such as Mendenhall; a drill can pull out 160,000 years of data'
Glaciers
WEATHER: Weather records are preserved in these, such as Mendenhall; a drill can pull out 160,000 years of data
Weather records are preserved in these, such as Mendenhall; a drill can pull out 160,000 years of data
Weather records are preserved in these, such as Mendenhall; a drill can pull out 160,000 years of data
WEATHER
Glaciers
WEATHER