exactly the logic skeptics and real scientists have been using... an episode of warming in the middle of a historical range can not show that CO2 is causing warming. We have been warming since the end of the last ice age.
Wrong again shit-for-brains. There was a downtrend in temps for 900 years until man started releasing CO2 and at that exact time (gee what a coincidence) the temps started skyrocketing. Remember jem. CO2 is a greenhouse gas. You DO know what a greenhouse gas is right?
...and we're expected to accept 1000 years of temp records accurate to fractions of a degree from tree rings and corals.... ....for once, and for all... "We All Know That CO2 is a Greenhouse Gas" .... and we also all know it's only, at most, 4 one hundredths of 1% Chicken Little and Winston Smith (post room 101) all wrapped into one, is truly a sad site.
Yes, actually ice core records from the same period as thermometer records agree quite well. Yes CO2 is a very small part of the atmosphere. Did you have some point you were trying to make?