miércoles, 02 de noviembre de 2005
Estalagmitas y cambio climatico
En un post anterior os comentaba que las variaciones en la temperatura de la Tierra se han sucedido a traves del tiempo y que durante la Edad Media de hecho hubo un período de calentamiento.
Nuevos descubrimientos vienen a conformar esto:
Noticia
A stalagmite from an Alpine cave may indicate that global warming is not as unusual as many think.
Deposits laid down in the stalagmite have enabled a European team to probe past climates confirming a Medieval Warm Period between AD 800 and 1300.
The warm spell is also indicated in some studies of tree-rings, ice-cores and coral reef growth records.
Writing in Earth and Planetary Science Letters the researchers suggest that global warming is a natural process.
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SPA-12 also shows evidence of the so-called "Little Ice Age", a temperature dip between roughly 1400 and 1850 when there is complimentary evidence from tree-rings and glacier advances that at least Northern Europe chilled a little.
The long-term changes in temperature as revealed by SPA-12 are at odds with the temperature change profile adopted by the Intergovernmental Panel on Climate Change (IPCC).
El artículo científico para los interesados:
ARTICULO
Nuevos descubrimientos vienen a conformar esto:
Noticia
A stalagmite from an Alpine cave may indicate that global warming is not as unusual as many think.
Deposits laid down in the stalagmite have enabled a European team to probe past climates confirming a Medieval Warm Period between AD 800 and 1300.
The warm spell is also indicated in some studies of tree-rings, ice-cores and coral reef growth records.
Writing in Earth and Planetary Science Letters the researchers suggest that global warming is a natural process.
***************
SPA-12 also shows evidence of the so-called "Little Ice Age", a temperature dip between roughly 1400 and 1850 when there is complimentary evidence from tree-rings and glacier advances that at least Northern Europe chilled a little.
The long-term changes in temperature as revealed by SPA-12 are at odds with the temperature change profile adopted by the Intergovernmental Panel on Climate Change (IPCC).
El artículo científico para los interesados:
ARTICULO
