The Ledger

Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.

clear all ✕

why aren't all 4 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Assertion Contradicted
Ellis: Sublime's process yields pure CO2 for under $10 a ton
“This means that we can use calcium carbonate, in which case, when the calcium is extracted, we're left with pure, cold, compressed CO₂, so inherently captured CO₂ that's ready to go into a pipeline or to be used in food grade applications, a very low cost of c…”
Leah Ellis Nov 17, 2022 ▶ 34:28 Fixing cement’s carbon problem
Assertion Contradicted
Leah Ellis: Labor represents 80% of concrete's total installed cost
“The total installed cost of concrete is, is 80% labor, and so even if there's a premium on the cement part, once you roll that into concrete, and then concrete's a very small part of the building, and then, you know, but it is a big part of the carbon footprin…”
Leah Ellis Oct 17, 2024 ▶ 13:59 The complex path to market for low-carbon cement
Assertion Contradicted
Ellis: Contractor labor makes up 90% of installed concrete costs
“What's interesting is that 90% of the cost, the total installed cost of concrete, is actually labor from the contractor.”
Leah Ellis Nov 17, 2022 ▶ 12:05 Fixing cement’s carbon problem
Assertion Contradicted
Ellis: The average US cement kiln is 50 to 60 years old
“Also, the average age of cement kilns in the U.S. Is about 50 to 60 years old, and we're starting to see some turnover in the capacity that's built here.”
Leah Ellis Oct 17, 2024 ▶ 8:20 The complex path to market for low-carbon cement
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