Friday, 25 January 2008

In retrospect, it appears obvious

Geologists from the University of Leicester propose that humankind has so altered the Earth that it has brought about an end to one epoch of Earth’s history and marked the start of a new epoch.

They have identified human impact through phenomena such as:

-- Transformed patterns of sediment erosion and deposition worldwide
-- Major disturbances to the carbon cycle and global temperature
-- Wholesale changes to the world’s plants and animals
-- Ocean acidificatio


The researchers argue that the dominance of humans has so physically changed Earth that there is increasingly less justification for linking pre- and post-industrialized Earth within the same epoch - the Holocene.

It seems so self-evident, but I'm sure someone will object.

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