`An astronomer reports (c. 2004) that in an impromptu survey, six out of ten of her fellow astronomers replied "carbon dioxide" when asked what was the major greenhouse gas.'
There you go - a majority of `scientists' are just as ignorant and easily misled as the average layman. In fact CO2 is NOT a major greenhouse gas and hardly qualifies to join the club; a) because it reflects heat rather poorly (only in two narrow bands of the spectrum); b) because it exists only in tiny quantities.
The truth is: Water Vapour - which exists in huge, mind boggling quantities and is a much more efficient greenhouse gas - has, luckily for us, been responsible for about 99.9% of all Earth-warming, from billions of years ago to the present day.
But of course gov'ts can't demonize (and tax) the natural water cycle's vapour - which keeps Earth relatively warm. N.b. without water vapour the Earth would be solid ice, even at the equator.
Cheers
Ray