This is an archive of AGU's GeoSpace blog through 1 July 2020. New content about AGU research can be found on Eos and the AGU newsroom.

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1 August 2019

Ancient plankton help researchers predict near-future climate

Temperature data inferred from plankton fossils from the Pliocene, an era with CO2 levels similar to today’s, allowed a research team to rectify discrepancies between climate models and other proxy temperature measurements.


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20 December 2010

Spurred by climate change, plant die-offs could wreak havoc on Tibetian lifestyle

For thousands of years the traditional herders of Tibet have lived among mountains, lakes and grasslands. Their livelihood– raising yak, sheep, and goats on the largest and highest plateau on the planet–is a precarious one.

As the planet warms, seasons that are normally dry on the Tibetan Plateau–winter and spring–are forecast to turn wet. At this elevation, the precipitation would fall as snow. Kelly Hopping, a graduate student in Ecology at Colorado State University, is worried this snow may disrupt the traditional life of these Tibetans.


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17 December 2010

Abrupt climate change: New data from lakes

Abrupt climate change is a provocative topic. How fast does it happen? How does it shift so quickly? What are the effects of climate swings on life?

It turns out that scientists are still teasing apart the details of if and when abrupt climate change happens. In yesterday’s Emiliani Lecture, session PP41C, David Hodell from the University of Cambridge presented his analysis of lake sediment samples and what they tell us about abrupt climate change during the last ice age, about 10,000-20,000 years ago.


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