"Scientific" American tells us that temperature drove CO2 levels before 1800, but not today

'Galileo Movement' Fuels Climate Change Divide in Australia: Scientific American

Two Australian retirees invoke the "father of modern science" to argue against settled climate science but instead draw from a deep history of denial and distortion
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In that sense, said NASA's Schmidt, correcting the scientific errors is almost pointless. "The science here is being used as a proxy for a lot of different things," he said, noting that debunking the fallacies in the Galileo Movement's argument won't change the group's prevailing politics.

"But it's clear that one side on this debate is abusing the science much more than the other," he added. "That's worth pointing out."

Why Carbon Dioxide Is a Greenhouse Gas: Scientific American

DailyClimate.org took up Smeed's challenge and passed the fact sheet on to a climate scientist – Gavin Schmidt, a climatologist with NASA's Goddard Institute for Space Science. He also publishes the blog RealClimate.org, one of the more-respected climate science blogs.

"You've got true facts," Schmidt said of the Galileo Movement's pamphlet. "They're just not the relevant facts."
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Claim: CO2 stays in the air only five to seven years, possibly less than 12 months before Nature cycles it into plants, animals and oceans.

Claim: Of Earth's annual production of CO2, humans produce just 3 percent.

Assessment: True but misleading.
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Claim: Measurements reveal that CO2 levels are a consequence of temperature, not the cause. Temperature drives CO2 levels.

Assessment: True before 1800. But false today.