please produce the science that makes them pretty darn sure.
the peer reviewed papers I find ... many which have been presented here show the sun and the tides have a lot do with warming and cooling.
The recent guesses we see with respect to co2 are based on the idea it can amplify warming. A few years ago there were guesses it could impact clouds causing warming... but then cloud research shows clouds can also cause cooling
So in short we have no real idea if man made co2 causes warming, cooling or nothing... when you look at the science.
So would I respect these guys opinion if they were not paid to have... sure.
But even then I would want to see the science not failed models.
Do you have any peer reviewed science showing man made co2 causes warming.
We don't need to debate whether we are warming outside natural variation right now.
lets just stick to peer reviewed science.
Now... for background... you should know I do believe in preserving and conserving the environment. I just would like to see some peer reviewed science before we surrender more freedom to cap and trade exchange owners and govt officials.
Here you go: http://skepticalscience.com/97-percent-consensus-cook-et-al-2013.html