Does air containing 400 ppm CO2 warm faster than air containing 200
ppm
when they are both irradiated with IR under the same conditions?

Why does methane show lesser warming than air in a greenhouse gas
warming experiment designed to contain it ?

Why does CO2  warm at the same rate as air when a greenhouse gas
warming experiment is insulated (as it should be to be a valid
experiment ) ?

 Why does CO2 lag behind the temperature in Ice Core data ?
Why doesn't the slope of the temperature curve increase as the CO2
increases and why does the slope of th CO2 graph increase as the
temperature increases ?

Why does he  insist on treating the various factors that affect Global
temperatures separately when the proper scientific method would
be to treat them together ?

Why does he insist that CO2 is driving the temperature up when
reasonable statistical analysis indicates the temperature rise
is causing the CO2 to increase ?

Is it because he not a scientist but a left wing political hack
who will lie to further the demise of capitalism ?

Roger won't reply he will hide behind his sock puppets.