Miscellaneous
Podcast Transcript September 11th, 2026— NYC bans AI for 500,000 students, and seven other solutions
Episode Description: An approach to treating degenerative blindness has been in development for more than ten years across research institutions in Spain. The result is not a surgery, a gene therapy, or an implant. It is eye drops. Light-activated compounds that restored vision in blind animal Read More...
Podcast Transcript September 4th, 2026— AI music banned from Australia's charts, Roman telescope launches, a biodegradable balloon and much more!
Episode Description: Arielle and Karissa are reunited after a few weeks apart, covering a wide range of solutions this episode: a new telescope that survived two White House cancellation attempts, the decade-long trial that settles the statin-and-dementia debate once and for all, and a Read More...
Podcast Transcript August 28th, 2026— Niger restored 5 million hectares without planting a single tree plus nine other things going right
Episode Description: Karissa hosts solo this week while Arielle recovers, covering ten solutions including the world’s first wild bird flu vaccination program for Phillip Island’s little penguins, France making unsolicited telemarketing calls flat-out illegal, and what Baltimore is doing Read More...
Podcast Transcript August 21st, 2026— (Guest Interview) Catch up with Kristy: clean energy, leaving California, and embracing the slow life
Episode Description: Many of the long-time listeners of The Optimist Daily's podcast will recognize Kristy Jansen's voice. She’s the former co-host and Executive Director of this show, and she’s back, joining Arielle and Karissa from Mérida, México, to catch them up on what happened in Read More...
Podcast Transcript August 14th, 2026— Taking our own advice on slowing down this summer
Episode Description: Arielle checks in solo to explain why the Kristy guest episode is getting a little more time. Both she and Karissa have been doing what they always say matters most: showing up, fully present, for the people they love. Babies, weddings, miles between people who love each Read More...
Podcast Transcript July 31st, 2026— Liquid air batteries, dolphins saved by plastic bottles, and an empty weekend a month
Episode Description: Dolphins fatally swim into fishing nets because the nylon is acoustically too similar to water for their echolocation to pick up. A researcher at Newcastle University wondered if attaching something that does produce an echo might change that. The dolphin-saving solution may Read More...
Podcast Transcript July 24th, 2026— The science of soccer-stress, salsa dancing for depression, and why summer slips away
Episode Description: Watching a tense soccer match nearly doubles cardiac event risk, and cortisol could start rising fourteen hours before kickoff. With Spain just taking the World Cup, a fair portion of the world’s population has basically been running a biological experiment on Read More...
Podcast Transcript July 17th, 2026— Wildfire satellites, Seine city cooling, and parenting securely attached kids
Episode Description: Greece just launched the world’s first satellite constellation built specifically for wildfire detection. It can spot a fire measuring only a few feet across, a huge improvement on conventional satellites, which start flagging fires when they're already the size of a Read More...
Podcast Transcript July 10th, 2026— 500 years of the soccer cleat, a world-first burn treatment, and green hydrogen in California
Episode Description: Every player at this year’s World Cup is wearing the end result of 500 years of iteration on a single piece of equipment. It started with factory workers hammering hardware store nails into their boots for traction on wet British turf. Ten solutions this week with Read More...
Podcast Transcript July 2nd, 2026— Coffee waste as fuel, Nepal same-sex marriage rights, and understanding heat domes
Episode Description: Stanford researchers took cartilage from patients already getting knee replacements (about as degraded as joint tissue gets) and discovered how it could regenerate itself. The cells weren’t replaced or reprogrammed; they just shifted back toward a younger pattern of Read More...