Obama Wants To Raise Your Electric Bill

I know you don't believe, but as you go on to say, your main objection is political, not scientific. A also think that pie-in-the-sky solutions could be unrealistically expensive, but it doesn't mean that certain affordable and doable reductions can't be considered. More importantly, the possible expense of a solution doesn't mean that the fact of global warming must be wrong.

Not the only culprit, but it's generally acknowledged to be the biggest culprit. And the fact of global warming is not alleged, it is documented. The controversy is over it's source, not its existence.

Then also read this, for some balance:

What does the lag of CO2 behind temperature in ice cores tell us about global warming?

 

Of course, but Carbon dioxide raises the temperature thus raising humidity and the capacity of the atmosphere to hold water. The concentrations of CO2 and methane have increased by 36% and 148% respectively in the last 300 years. These levels are considerably higher than at any time during the last 650,000 years, the period for which reliable data has been extracted from ice cores.

The water vapor concern is for secondary and multiplier effects. That is: if the average temperature of atmospheric layers near to the ground, as a consequence of human CO2 and methane emissions, is rising, then the evaporation of water is increased. Henceforth more water vapor will get into the air, and this additional abundance of water vapor will also absorb more heat.

As I always note, it's all a matter of balance. Nature fluctuates climate as it tries to achieve equilibrium amid changing global conditions. Humans are a recent and significant global condition. What I see as obvious is the need for humans to be as balanced with regards to climate impact as possible. If we are standing on the warming side, we should be trying all practical means to move to the neutral.