Tag #Paleoclimatology

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faz.net

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Jan 9, 16:11

Antarctic Ice Core Reveals 1.2 Million Years of Climate History

A 2.8-kilometer-long ice core, drilled in Antarctica as part of an EU-funded project, contains a high-resolution climate record dating back 1.2 million years, potentially resolving the mystery of increasing intervals between ice ages and offering insights into future climate change.

Antarctic Ice Core Reveals 1.2 Million Years of Climate History

A 2.8-kilometer-long ice core, drilled in Antarctica as part of an EU-funded project, contains a high-resolution climate record dating back 1.2 million years, potentially resolving the mystery of increasing intervals between ice ages and offering insights into future climate change.

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How did the selection of the drilling location and the subsequent handling of the ice core ensure the preservation of its valuable climate data?

The ice core's analysis aims to explain the significant increase in the duration between ice ages occurring between 800,000 and 1.2 million years ago, a major puzzle in climate science. The high-resolution climate record, compressed at a rate of 13,000 years per meter of ice in the upper section, will provide unprecedented insights into past climate variability. This detailed record will be invaluable for understanding future climate change.

nos.nl

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Jan 9, 19:11

1.2 Million-Year-Old Antarctic Ice Core Retrieved

After a decade of drilling in Antarctica, scientists retrieved a nearly 3-kilometer-long ice core containing ice at least 1.2 million years old, which will be analyzed to understand past atmospheric and climate changes and the evolution of life in extreme environments.

1.2 Million-Year-Old Antarctic Ice Core Retrieved

After a decade of drilling in Antarctica, scientists retrieved a nearly 3-kilometer-long ice core containing ice at least 1.2 million years old, which will be analyzed to understand past atmospheric and climate changes and the evolution of life in extreme environments.

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How did the technological challenges of extracting the ice core from such depths impact the research process and timeline?

The ice core contains a layer of sediment, microorganisms, viruses, and bacteria from 2.8 kilometers deep, offering insights into ancient life. The extraction was technologically challenging, with scientists working in extreme conditions (-26 to -27 degrees Celsius) to retrieve 4-5 meter sections using specialized equipment. Analysis of previous ice core sections shows that greenhouse gas concentrations never exceeded current levels, which are 50 percent higher than the peak levels of the last 800,000 years.

nos.nl

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Jan 9, 19:11

1.2-Million-Year-Old Antarctic Ice Core Retrieved

A team of scientists in Antarctica retrieved a nearly 3-kilometer-long ice core after a decade of drilling, revealing ice at least 1.2 million years old to study past climate and atmospheric changes, and the evolution of life in ancient times.

1.2-Million-Year-Old Antarctic Ice Core Retrieved

A team of scientists in Antarctica retrieved a nearly 3-kilometer-long ice core after a decade of drilling, revealing ice at least 1.2 million years old to study past climate and atmospheric changes, and the evolution of life in ancient times.

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How did the extraction process and environmental conditions impact the research?

The ice core contains a layer of sediment, microorganisms, viruses, and bacteria, offering insights into the evolution of life in ancient times. The extraction was a technologically advanced operation, performed in teams under extreme conditions (-26 to -27 degrees Celsius). Analysis of previous core sections showed that greenhouse gas concentrations never exceeded levels seen since the Industrial Revolution.

Showing 13 to 15 of 15 results