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 14 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 Supported
Pierpoint: Alameda City Council shut down an atmospheric sea salt startup test
“In Alameda, just a year ago, there was a startup company that was releasing sea salt particles, or at least trying to, into the atmosphere. And it went real bad, real fast, and the city council effectively shut it down out of a lot of fear”
Lara Pierpoint Sep 4, 2025 ▶ 7:10 AMA: Geoengineering, nuclear, power prices, and more
Assertion Supported
Pierpoint: US built only 386 miles of high-voltage transmission in 2021
“In the U.S., we have about 640,000 miles of high voltage transmission lines. Most of these were built in the fifties and sixties, and most of them are operating at full capacity. Last year, we built a grand 386 miles of new line, and our record for the last de…”
Lara Pierpoint Nov 3, 2022 ▶ 3:04 Getting more energy on the wires
Assertion Supported
Pierpoint: California majority now favors keeping Diablo Canyon nuclear plant open
“And so for the first time in decades, you actually see more people Wanting to keep the Diablo Canyon plant open than wanting to close it.”
Lara Pierpoint Jun 23, 2022 ▶ 7:24 Which tech is overhyped, underhyped and just right?
Prediction Held up
Pierpoint: Hydrogen is probably not going to power passenger vehicles
“I think we're all sort of in agreement that passenger vehicle transportation is Probably not in the offing for hydrogen.”
Lara Pierpoint Jun 23, 2022 ▶ 29:37 Which tech is overhyped, underhyped and just right?
Assertion Supported
Pierpoint: US and France saw reverse nuclear learning curves unlike South Korea
“The truth is that when you look at the United States and you look at France, two of the places that have built the most reactors in the world, you see reverse learning curves, actually, when it comes to the cost of nuclear power. It actually increased over tim…”
Lara Pierpoint Feb 25, 2022 ▶ 39:40 Will advanced reactors solve nuclear's problems?
Assertion Supported
Swiss Re projects global property risk pool will grow 33–41% by 2040
“Swiss Re, one of the companies that insures the insurers, Estimates that the global risk pool for property, driven largely by climate, will grow 33 to 41% by twenty-fourty.”
Lara Pierpoint Feb 17, 2022 ▶ 3:18 A critical tool for scaling climate tech: insurance
Assertion Supported
Pierpoint: Heavy-duty trucks account for nearly 25% of transportation emissions
“Heavy-duty trucks make up less than five percent of vehicles on the road, but they generate nearly 25% of transportation emissions.”
Lara Pierpoint May 15, 2025 ▶ 2:21 Terrawatt Infrastructure’s billion-dollar strategy
Assertion Supported
Pierpoint: Lithium-ion battery pack prices fell 89% between 2010 and 2020
“They went down 89% between twenty-ten and twenty-twenty from pack prices above 1100 dollars a kilowatt hour down to around 140 dollars a kilowatt hour.”
Lara Pierpoint Mar 17, 2022 ▶ 2:36 When will batteries take over the world?
Assertion Supported
Pierpoint: GM recalled nearly 150,000 Chevy Bolts following 13 battery fires
“They've gotten safer in many respects, but we have a way to go there, too, given that just last August, GM recalled all of the nearly 150,000 Chevy Bolts they have ever made due to 13 EV battery fires.”
Lara Pierpoint Mar 17, 2022 ▶ 2:52 When will batteries take over the world?
Assertion Supported
Pierpoint: California grid hosts 1.2M solar panels and 1M EVs
“20 years ago, California had tens of thousands of grid-edge assets. Now, it has millions of them. This includes 1.2 million solar panels, providing an estimated 15% of California's electricity, and a million plug-in vehicles.”
Lara Pierpoint Mar 11, 2022 ▶ 2:42 What the grid can learn from the internet
Assertion Supported
Pierpoint: 2021 Global Energy Efficiency Growth Fell to 1.9%, Lagging Net-Zero Goals
“In 2021, the International Energy Agency estimated that efficiency improved by about 1.9%. That's less than half the rate that's required to meet global net zero targets by 20 50. Furthermore, that rate actually represents some backsliding, because in 2011 to …”
Lara Pierpoint Mar 3, 2022 ▶ 3:12 Unlocking hyper-efficient cooling
Assertion Supported
Pierpoint: Hurricane Andrew caused $15.5B in damage and bankrupted 16 insurers
“So one of them, you know, in 1992, we had Hurricane Andrew that hit Florida, and it was 15 and a half billion dollars worth of damage, and 16 insurance companies went belly up as a result.”
Lara Pierpoint Feb 17, 2022 ▶ 43:22 A critical tool for scaling climate tech: insurance
Assertion Supported
Pierpoint: Traditional nuclear reactors max out around 300°C
“It's about 300 degrees C. It's about the most you're gonna get out of a traditional nuclear reactor, and some of these advanced technologies can go a lot higher.”
Lara Pierpoint Feb 25, 2022 ▶ 22:19 Will advanced reactors solve nuclear's problems?
Assertion Supported
Pierpoint: Global insurance sector is worth $5 trillion
“To put some numbers on it, the global insurance sector is worth about five trillion dollars. Insurance companies earn roughly 1.6 trillion in premiums for property and casualty insurance, which is the type that often pays out after a climate disaster.”
Lara Pierpoint Feb 17, 2022 ▶ 3:05 A critical tool for scaling climate tech: insurance
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