Yea same here - I keep thinking of the example of a stainless water bottle where most users never used it long enough to pay back the upfront energy investment.
Exactly. Concrete is a good stress-test example. Very basic material that China uses at the fastest rate in history, and it’s hard to imagine either a substitute product or sufficiently negative-carbonized production to offset emissions in use. It’s basic to a whole way of life.
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Source capture --> sequestration near the source wouldn't be that crazy for this though. It'd make cement plants near CO2 injection sites uniquely profitable. Also, there are carbon negative concretes available today, we just need to offset their cost increase.
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Regarding concrete and other hard decarbonization problems,
@ChrisGoodall2 's newsletter is a clearing house for news on scalable solutions. Every significant GHG source has multiple attacks at scale happening now. Skim the last few editions: https://us9.campaign-archive.com/home/?u=a336c39e55a6260d59adbffb0&id=ffb538443d … - Show replies
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