" Glaciers are frozen manuscripts that tell stories just like tree circles and sedimentary deposits; from them, you can gather information and create a picture of the past. Glaciers store histories of volcanic activity. They store pollen, rainwater and air that reveal the chemical make-up of the atmosphere tens of thousands of years back in time. They are important sources of details about vegetation and precipitation of the past. "

― Andri Snær Magnason , On Time and Water