Bookends on Ice: North-South Glaciers Offer Clues to Global Climate Change
Twelve years of climbing, coring, and collecting evidence of climate change across the Southern Hemisphere are leading to a new understanding of global climate change and attracting the attention of top climate scientists.
UC geology professor Thomas Lowell began working in Chile in 1990 and added New Zealand to his field studies in 1997, as part of an international research team looking at glacial retreats and advances over the last 25,000 years.
The evidence collected over those 12 years demonstrates that glaciers in the Southern Hemisphere changed in sync with Northern Hemisphere glaciers on three different time scales: the end of the last major Ice Age (14-15,000 years ago), a period of abrupt climate change known as the Younger Dryas cold reversal (10-11,000 years ago) and the Little Ice Age which lasted from the 14th to the 19th centuries A.D.
That's strong evidence...
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