Ross D. Franklin / AP

The Bay Area's SkyCool Systems is developing a technology that one day might be used to significantly cut energy demands from air conditioning, one of the U.S.'s major draws of electricity, per MIT Technology Review.

  • How it works: SkyCool has developed panels that reflect sunlight at a specific infrared range that allows heat to slip through the atmosphere, allowing their surface to cool — while also cooling the water used in traditional air conditioning systems. Recent results suggest existing buildings can be retrofitted with the technology.
  • By the numbers: The panels could cut energy use in buildings by 10 to 70%, depending on conditions.
  • Why it matters: Should SkyCool's proof-of-concept test pan out (they're currently in field trials), the technology could have a serious impact at hotels, supermarkets and other places that require massive amounts of climate control.

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Dan Primack, author of Pro Rata
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Leon Black says he "made a terrible mistake" doing business with Jeffrey Epstein

Photo illustration: Sarah Grillo/Axios. Photo: Rick Friedman/Corbis/Getty Images

Apollo Global Management CEO Leon Black on Thursday said during an earnings call that he made a "terrible mistake" by employing Jeffrey Epstein to work on personal financial and philanthropic services.

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Photo: Christopher Furlong/Getty Images

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Why it matters: It represents a strong break by Keir Starmer, Labour's current leader, from the Corbyn era and one of the party's most persistent scandals.

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The state of play: The record growth follows easing of the coronavirus-driven lockdowns that pushed the economy to the worst-ever contraction — but GDP still remains well below its pre-pandemic level.