In message , Graham P Davis
writes
Gianna wrote:

Happily, it did not suggest for a moment that pollution was anything but a
bad
idea. Essentially, it provided data on any causal link between higher
temperature and higher CO2, and demonstrated that the latter is caused by
the former, not vice versa.


Blimey! Are you sure they said that? How did they get round the problem that
the excess CO2 can be identified as being generated artificially? Also, why
does the growth in CO2 not reflect the cycles in tempurature?

Deglaciation is triggered by regional changes to insolation (see
Milankovich cycles). One obvious positive feedback that reinforces the
end-glacial warming is albedo reduction. It appears that the end-glacial
warming also caused CO2 to be released into the atmosphere, causing more
warming. Thus the end-glacial CO2 level trend lagged the end-glacial
temperature trend. This is not the same as demonstrating that higher CO2
does not cause higher temperatures, but might be mistaken as such to the
naive or casual student.
--
Stewart Robert Hinsley