[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: mass extinction

I believe the stats that are thrown about by journalists suggest that the 
RATE (species per unit of time) of extinction is currently faster than at any 
other time. Although exactly how the extinction rate can be determined in the 
past, I don't know.

I'd have thought that, given the rapid climate shift at the end of the 
Pleistocene, extinction rates would have been relatively swift then. Ice core 
studies suggest that the climate swung from glacial to interglacial within a 
human lifetime. That's a much greater change in global climate, within a much 
shorter time span, than us lowly humans have so far been able to manage.


Dann Pigdon 
GIS / Archaeologist         http://heretichides.soffiles.com 
Melbourne, Australia        http://www.geocities.com/dannsdinosaurs