Wrong. 2/3of a cars pollution are produced in production. The fuel consumption, polluting as it is, needs 20+years to catch up to the gestation environment damage of a car. Perverse as it sounds, old rusty clunkers are more environmental friendly.
>>3seash+(OP)
The numbers are a lot more complex than that. 2/3 is a plausible but not incontrovertible number for cars manufactured now. It's reasonable to assume the ratio is significantly worse for older cars.
>>3seash+(OP)
This sibling comment (>>38439016
) and google searches do not support your numbers - the CO2 impact of producing a car is roughly equivalent to one year's use, both are give-or-take 5 metric tons.