News tagged with glaciation

Cracking the ice code

(Phys.org) —What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?

May 20, 2013
3.8 / 5 (8) 2 | with audio podcast

What really happened prior to 'Snowball Earth'?

In a study published in the journal Geology, scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science suggest that the large changes in the carbon isotopic composition of car ...

Jan 27, 2012
4.2 / 5 (9) 18 | with audio podcast

Plunge in CO2 put the freeze on Antarctica

Plunge in CO2 put the freeze on AntarcticaAtmospheric carbon dioxide levels plunged by 40% before and during the formation of the Antarctic ice sheet 34 million years ago, according to a new study. The finding helps solv ...

Dec 01, 2011
5 / 5 (2) 24 | with audio podcast

Life's Ancient Island in the Ice

During the last ice age, massive glaciers covered much of our planet. However, a region of Alaska, Siberia and the Canadian Yukon remained ice-free. This region, known as Beringia, supported unique organisms ...

Oct 29, 2009
4.6 / 5 (14) 3