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> cars don't actually contribute to climate change that much, which is not true I couldn't find some ready numbers, so I tried some estimations. 26% of all en
by flavius29663 5y ago
> cars don't actually contribute to climate change that much, which is not true
I couldn't find some ready numbers, so I tried some estimations.
26% of all energy goes into transportation[1]. Automobiles are about 60% from that, so about 15% of total energy is spent moving automobiles[2].
1 https://www.eia.gov/totalenergy/data/browser/index.php?tbl=T02.01#/?f=A&start=1949&end=2020&charted=3-6-9-12 https://www.eia.gov/totalenergy/data/browser/index.php?tbl=T...
2 https://www.europarl.europa.eu/news/en/headlines/society/20190313STO31218/co2-emissions-from-cars-facts-and-figures-infographics https://www.europarl.europa.eu/news/en/headlines/society/201...
This does not include land use and agriculture emissions.
Looking at it another way, US has close to 300 million vehicles, and the average automobile emits 4.8 tonnes [3] of CO2 a year. It comes down to 1.5 gigatons of CO2 each year. Total US emissions are about 5 gigatons. This would make it a 30% part of CO2 emissions. It's higher than the number above because that was based on European values of 60% of all transportation emissions coming from automobiles. The US automobiles are bigger and consume more.
3. https://www.epa.gov/greenvehicles/greenhouse-gas-emissions-typical-passenger-vehicle https://www.epa.gov/greenvehicles/greenhouse-gas-emissions-t...
I think it's safe to say it's somewhere in the ballpark of 15-30% of all CO2 emissions are from automobiles.
I don't consider the manufacturing of the automobiles, because people will need moving regardless. It's either a battery powered car, plane, train etc. Those all need manufacturing and maintaining.