Do you think that Trumps EPA Czar Scott Pruitt will know how much CO2 is in the atmosphere?

Honestly, it sounds like McCarthy knew it was 400 ppmV so not being able to calculate 400/1,000,000 in her head isn't as bad as not knowing it was 400 ppmV. I hope the Trump focuses his attention on obvious attempts to exaggerate the consequence of those concentrations and the actual costs to our economy. Pruitt is a good step in that direction.

In 2014, The New York Times found that a letter Pruitt sent to the EPA challenging estimates of emissions from natural gas wells in Oklahoma was actually written by Devon Energy, one of the oil and gas companies working in the state. The attorney general simply added his letterhead and signature. The report identified several other letters to federal agencies that had also been written by Devon Energy.

Pruitt is a wholly owned subsidiary of the oil industry, seems like Trump is draining the swamp right into his administration or maybe he is hoping to drain the swamp by letting climate change do all the work...

All non solids like co2, exhaust, smoke, gases, etc. that rise in the upper atmosphere is separated by Nature's icy chemicals so the suns rays can warm earth as earth rotates to grow plants to make oxygen & food so all species can survive as it has done since earth was formed from the beginning of time. Mike

The real question is how much CO2 will lead to catastrophic global warming. Let's ask the folks at 350.org. {Hint: the answer is not 350 ppm or 400 ppm.}

I believe that there is no accurate way to determine the CO2 in the global atmosphere. After all we use one place to estimate it.

I don't think he will care even if he's told.

Perhaps--it depends on how good he is with numbers. But I would give you 50 to 1 odds that he would get the amount of water vapor wrong.

yes

He may well but as with Rohrabacher, he wont know what that means