The iron and the water are connected to a heat engine which is connected to an air conditioner in a room also at the same initial temperature. (realclimate.org)
A reduced fluence of laser pulses results in a reduced initial temperature of individual corresponding NPs compared with the case of a single pulse excitation. (thno.org)
So while CO2 did lag behind a small initial temperature change (which mostly occurred in the Southern Hemisphere), it led and was the primary driver behind most of the glacial - interglacial warming. (skepticalscience.com)