http://www.elmundo.es/elmundo/2006/11/08/ciencia/1163006832.html?a=a8bd79aa6af58c39b1e8bf97686dcbf1&t=1163043151

Pues no sé qué es peor, si el sensacionalismo o estas traducciones:

Tras sincronizar la concentración de metano en un núcleo de hielo del norte de Groenlandia con la de ese mismo isótopo de oxígeno del núcleo de Dronning Maud Land, en la Antártida, se observó una clara correspondencia entre los episodios cálidos de la Antártida y los llamados episodios Dansgaaard-Oeschger, de Groenlandia.

nchsssssssssst

En fin. Al margen de esto, en lo sustancial lo interesante es que los eventos DO que ya se sospechaba no eran un fenómeno local de Groenlandia, eran parte de algo más global.

Y eso sí eran cambios climáticos ... ¡¡ 8ºC en menos de 50 años !!

http://en.wikipedia.org/wiki/Dansgaard-Oeschger_events

Insisto, lo que a mi me gusta es la foto

El resumen del artículo en cuestión publicado en la revista Nature es el siguiente:

One-to-one coupling of glacial climate variability in Greenland and Antarctica
EPICA Community Members25

Precise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth's climate dynamics. For the last glacial period, ice core studies1, 2 have revealed strong coupling of the largest millennial-scale warm events in Antarctica with the longest Dansgaard–Oeschger events in Greenland3, 4, 5 through the Atlantic meridional overturning circulation6, 7, 8. It has been unclear, however, whether the shorter Dansgaard–Oeschger events have counterparts in the shorter and less prominent Antarctic temperature variations, and whether these events are linked by the same mechanism. Here we present a glacial climate record derived from an ice core from Dronning Maud Land, Antarctica, which represents South Atlantic climate at a resolution comparable with the Greenland ice core records. After methane synchronization with an ice core from North Greenland9, the oxygen isotope record from the Dronning Maud Land ice core shows a one-to-one coupling between all Antarctic warm events and Greenland Dansgaard–Oeschger events by the bipolar seesaw6. The amplitude of the Antarctic warm events is found to be linearly dependent on the duration of the concurrent stadial in the North, suggesting that they all result from a similar reduction in the meridional overturning circulation.

Nature 444, 195-198 (9 November 2006)