basskisser wrote:
Black Dog wrote:

basskisser wrote:

RCE wrote:


"basskisser" wrote in message
legroups.com...


You do realize, don't you, Bill, that the warming is happening at a
pace that hasn't happened before?

How do we possible know that for a fact?


Ice borings.


Those ice borings show atmospheric CO2 content. They us NOTHING at all
about temperature.


Nope, ice borings show freeze/thaw cycles. See:
http://www.teachersdomain.org/9-12/s...and/index.html



Didn't see that there. Only this
"For example, scientists can determine temperature by analyzing the
ratio of different forms, or isotopes, of oxygen atoms in the core."

I wasn't aware that O isotopes were that temperature sensitive, to
detect changes in fractions of degrees. So I take back my NOTHING. But
I'd like to see data and methods. I've done a bit of work with fluid
inclusions in minerals - and ice is a mineral - but that work has a
pretty hefty margin of error.