I wonder what the full carbon/environmental footprint of a hybrid is. Save fuel, fewer emissions, great. But what are the total costs to the environment of making and maintaining a hybrid?
$10K premium to buy one- money has a footprint, the energy used in earning it.
Lead batteries- mining, manufacturing, replacing and disposing of them all impact the environment. Are the batteries recyclable? At what cost?
Additionally, if a hybrid owner feels greener, he/she may drive more, guilt free. Like a double helping of 1/2 fat ice cream, the benefits are erased.