"Indeed, over the past two decades, when CO2 levels have been at their highest, global average temperatures have actually cooled slightly."
This raises a point that I have been making that no-one seems to have thought of, the law of unintended consequenses.
What if all the meddling by these do-gooder libs actually reduces the CO2 level, and we then discover we have disrupted a natural equilibrium mechanism that, to date, has kept global temperatures within a specific range, and by interfering with naturally compensating C02 levels, the global temperature levels spin out of control?
The other obvious point is if the earth temperature were to rise than it would cause more evaporation, clouds and rain/snow. Guess what happens then?? Global Cooling.
Pray for W and Our Troops
Can you say "fart in a wind storm"?
Even if everyone on the planet gave up incandescent bulbs for flourescent and also gave up their internal combustion engines, the reduction of carbon emissions wouldn't amount to anything more than an adult relieving him or herself in the ocean.
Let 'em tilt at their windmills.