People take their salaries and buy food, clothes, heating and air conditioning, cars and fuel, and plane tickets, and furniture. All of those things generate emissions in their production and/or transportation. This is why dollars is such a good proxy for co2 emissions.
Surely a person driving 18 people will emit less than each person driving themselves? I can see how dollars can be a proxy for macroeconomic stuff, for example by comparing countries, but it doesn't make much sense for comparing individual units of transport.
I don't understand why we have to do napkin maths to guess what's more polluting. There is countless research showing buses emit less than individual cars per passenger per km, self-driving or not.
And there's no reason buses can't be self-driving as well, if anything, them driving slower, on dedicated lanes and on fixed routes would make it much easier.
The very source you are providing is pretty clear to me. For cars, only hybrids and EVs are more efficient, and that is because it's comparing electric passenger cars with all buses (most of which still run on fossil fuels). There is no data for electric buses, but it's pretty intuitive to me that they would emit less per passenger kilometre than an electric car.
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You're counting emissions from a person's breathing as part of the vehicle's emissions?
People take their salaries and buy food, clothes, heating and air conditioning, cars and fuel, and plane tickets, and furniture. All of those things generate emissions in their production and/or transportation. This is why dollars is such a good proxy for co2 emissions.
Surely a person driving 18 people will emit less than each person driving themselves? I can see how dollars can be a proxy for macroeconomic stuff, for example by comparing countries, but it doesn't make much sense for comparing individual units of transport.
I don't understand why we have to do napkin maths to guess what's more polluting. There is countless research showing buses emit less than individual cars per passenger per km, self-driving or not.
And there's no reason buses can't be self-driving as well, if anything, them driving slower, on dedicated lanes and on fixed routes would make it much easier.
No. A person driving themselves does not create any _incremental_ CO2 emissions. They don't need a dedicated full-time position to do the driving.
Care to share it? I actually read through most of highly cited articles in this area, and it's not at all so clear-cut. For example: https://ourworldindata.org/travel-carbon-footprint
The very source you are providing is pretty clear to me. For cars, only hybrids and EVs are more efficient, and that is because it's comparing electric passenger cars with all buses (most of which still run on fossil fuels). There is no data for electric buses, but it's pretty intuitive to me that they would emit less per passenger kilometre than an electric car.