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Tag: glaciers

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.

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The ‘Tahoe Tsunami': New Study Envisions Early Geologic Event

KQED Science | July 31, 2014 | 0 Comments

The ‘Tahoe Tsunami': New Study Envisions Early Geologic Event

A new paper marshals evidence detailing the catastrophic landslide and mega-tsunami that struck Lake Tahoe during the late Pleistocene.

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California’s Vanishing Glaciers: A Defining Moment

KQED Science | May 27, 2013

California’s Vanishing Glaciers: A Defining Moment

The Lyell and Maclure glaciers in Yosemite – like glaciers and ice sheets worldwide – are in rapid state of retreat. The Lyell and Maclure were presumed to be “true” glaciers – that is, thick slabs of ice dragged downhill under their own weight, scouring the land as they move – but scientists are discovering that the Maclure is deteriorating as it moves, and the Lyell is no longer moving at all.

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