Regardless of the warming stuff, jets are polluting, the central valley, where Sacramento is, is listed as the worst air in the country. Flying back and forth from his mansion to the capitol daily is ridiculous.
Jets are a minor source of pollution. Their exhaust contains water vapor, unburned hydrocarbons, particulates, sulfates, nitrogen oxides (NOX), and carbon dioxide. The GW crowd has some concerns about the warming effects of the exhaust clouds. The exhaust clouds are mostly released at high altitudes so I do not think there is much of a pollution impact on the ground.
I am much more concerned about the hypocrisy pollution. The California governor is competing with the GW pope for the hot air prize. In times of insane gas prices, the California governor should just live as a commoner. If all of the other leftist hypocrits would stop their personal airplane trips, the reduction in oil demand may even have an impact on oil markets.