News tagged with ice core

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Westerly winds and CO2 levels

The end of the last Ice Age was preceded by a gradual rise in atmospheric CO2. A new study supports the idea that a shift in the position, and increase in the intensity, of zonal westerly winds in the Southern ...

Aug 07, 2013
3.6 / 5 (8) 1

Diatoms explain release of CO2

(Phys.org) —Scientists have found unexpectedly high concentrations of opal, a mineral containing silicate, in marine sediments during the transition periods from ice ages to warm phases. The explanation ...

Apr 10, 2013
5 / 5 (4) 4 | with audio podcast

Bedrock breakthrough in Antarctica

(Phys.org)—A team of scientists from nine nations, led by Victoria University's Dr Nancy Bertler, have made a huge breakthrough in Antarctica—successfully drilling more than 760m through the ice to the ...

Jan 07, 2013
5 / 5 (5) 6