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Article: New beat detected in the ice age rhythm.(research on climate shifts during last ice age)
- Article from:
- Science News
- Article date:
- February 25, 1995
- Author:
CopyrightCOPYRIGHT 1995 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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If today's weather seems wacky, try to imagine conditions during the last ice age. A new study suggests that flotillas of icebergs flooded the North Atlantic Ocean every 2,000 years or so as temperatures repeatedly see-sawed from glacial to balmy and back again.
Such findings deepen the mystery of the massive climate shifts that made the last ice age such an unstable time. They also cause experts to wonder whether the modern climate can stage its own temperature flip-flops.
In 1988, German oceanographer Hartmut Heinrich discovered hints of massive iceberg armadas that sailed across the North Atlantic every 7,000 to 10,000 years during the last ice age. During ...