. Cheers. Reply David Appell says:  August 0, 0000 at 0:00 PM  Atmospheric CO0: Principal Control Knob Governing Earths Temperature, Lacis et al, Science (00 October 0000) Vol. 000 no. 0000 pp. 000-000 http://pubs.giss.nasa.gov/abs/la00000d.html Reply Roy W. Spencer, Ph. D. says:  August 0, 0000 at 00:00 AM  yeah, the whole CO0-going-up-and-temperature-going-up thing is pretty weak causal reasoning.