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Comment by epistasis

15 hours ago

tl;dr The amount of fossil fuels it takes to make stuff is not nearly as big as the amount of fossil fuels we use to transport ourselves in cars.

Consumption-based accounting of CO2 emissions is harder than production-based accounting, but it allows us to see more clearly what the CO2 cost of our lifestyle is. It's been ~5 years since I looked at one of those in detail, but I don't think it's changed much since then. The big takeaway for me was that for the US, which has massive emissions compared to Europe countries, urban/suburban design and land use was by far the biggest determinant of CO2 consumption, followed by income/wealth. Despite their higher wealth and ability to spend more, residents of urban areas have for lower emissions than suburban residents.

See, for example, https://coolclimate.org/maps

There's a tendency to think of consumption in zero-sum terms, but it turns out that energy efficiency has a massive impact on emissions, and also that intuition about quantities of emissions is really hard to gain without a lot of study.