"truth in decarbonizing" -- meaningful and honest book-keeping practices that track how much carbon your product or service is actually removing from the economy relative to the likely alternatives... even without fraud, these comparisons are REALLY hard to model and make
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How do you allocate upstream carbon with multiple products? Tough problem with no unique solution. But at least with a consistent methodology you can make comparisons. But across completely different supply chains?
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Not sure what you mean. LCAs for given products do go all the way upstream and downstream if done right.
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Yes they go all the way up. Not the issue.
Upstream factory makes 2 widgets. We use just one. Each widget has an incremental carbon contribution. But factory has overhead carbon, perhaps process heat.
How do you apportion that? There are multiple ways.
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