"CO2 has never known to be a climate driver." = CO2 don't drive any changes in climate. 97 percent of climate scientists disagree strongly with that statement, making it illogical to write "never known".
It's quite apparent when one says "climate driver" is to mean to play as a major or even a large role in climate change. Hence, the key word is "driver."
It is quite baseless to come up with the oft repeated "97 percent of climate scientists disagree..." comment since it is misleading because not all scientists were questioned and that 97% doesn't convey accurately how many scientists (or "scientists" in this case) disagreed or agreed. What about the 31,478 American scientists, including 9,029 with PhDs, who disagree with the notion that CO2 caused global warming? ( Global Warming Petition Project ). Or what about the over 700 dissenting scientists, which is more than 13 times the number of UN scientists (52) who authored the media-hyped IPCC 2007 Summary for Policymakers? ( .: U.S. Senate Committee on Environment and Public Works :: Minority Page :. ). Or even the recent gathering of scientists at this year's International Conference on Climate Change where some "800 scientists, economists, legislators, policy activists, and media representatives attended the event, which took place at the New York Marriott Marquis Hotel. Produced by The Heartland Institute and 60 co-sponsoring organizations, the conference is devoted to answering questions overlooked by the United Nations’ Intergovernmental Panel on Climate Change (IPCC)." What about that one?
The IPCC concluded global temperatures may already have reached crisis proportions, and that human activity was a key driver in raising temperatures, primarily because of the release of carbon dioxide into the atmosphere. But the 80 speakers at the Heartland conference presented a substantially different viewpoint. “The number of people registered for this event is nearly twice as many as attended the 2008 conference,” noted Heartland President Joseph Bast. “And the presenters at this year’s conference are the elite in the world among climate scientists. We will be delighted to demonstrate once again the breadth and high quality of support that the skeptical perspective on climate change enjoys.”
The Heartland Institute - Welcome to the 2009 International Conference on Climate Change
So, perhaps you need to stop using this baseless "97% agree" consensus nonsense blather the next time around?
"CO2 increase cannot be the sole driver in climate change"=something else than above. Now CO2 can drive climate changes.
Not according to numerous studies (I've gave out the references) that temperature rose first then a lag time going into hundreds of years CO2 followed upwards. Big difference. If you blame the word "increase" then you have a classic example of unclear statements, and it's illogical, because if the word increase is needed to be a climate driver, then nothing can drive the climate according to your first statement. Sun activities have to increase to drive the climate, else it's not a climate driver. CO2 have to increase, else it's not a climate driver.
Ahem! "International Solar Cycle Studies: Sun as a Climate Driver" - http://www.scostep.ucar.edu/archives/scostep11_lectures/Pap.pdf