The Optimist Daily's Weekly Roundup

Arielle and Karissa cover ten solutions this week, including 20,000 octopuses hiding in well-studied waters off the California coast, what Indonesian mosque loudspeakers have to do with earthquake survival, and a garden chore you now have a very good reason to skip. Transcript link: https://www.optimistdaily.com/?p=1423118 If you have questions, comments, feedback, suggestions, or just want to say...

If you have a teenager in your life and you've felt them pull away from conversations you used to have easily, this episode is for you. Kathy Saulitis has spent three years going through what young people write and create when nobody is grading it: the poems, drawings, essays, and songs submitted to #CreateConnectCare, a youth mental health initiative that collected over 3,000 submissions this yea...

This week Arielle and Karissa cover the Colorado wildlife overpass that came in $15 million under budget and brought pronghorn back to habitat they hadn't reached in decades, what Japan's 107,000-plus centenarians reveal about diet and aging, Dolly Parton's Imagination Library expanding in London less than a month after her death, and more! Transcript link: https://www.optimistdaily.com/?p=1423038...

There's a startup training dogs to detect cancer across seven types… and there's over 90 percent accuracy across six hospitals. This week Arielle and Karissa also cover a wildcat species science just got around to naming (local communities already had a name for it), bison reshaping a Mexican desert faster than anyone expected, and what Cambridge researchers found when they actually quantified how...

Most world maps show Greenland and Africa as roughly the same size… which is kind of unbelievable considering Africa is 14 times larger! This error has been built into classrooms, boardrooms, and institutions since 1569. Last week, 164 countries finally voted to fix it. Arielle and Karissa also cover a solar ambulance built by university students that completed its first real-world test in rural K...

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 models by stepping in where lost photoreceptors used to be, without disturbing the underlying disease. Arielle and Karissa cov...

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 biodegradable balloon that took three years and hundreds of failed experiments to get right. Transcript link: https://www.optimistdail...

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 with $400 million in opioid settlement money. transcript link: https://www.optimistdaily.com/?p=1422844 If you have questions, comme...

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 between: the clean energy industry from the inside, and what it's like to start over somewhere new when you didn't really pick the tim...

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 other. Sometimes slowing down really is the solution. Transcript link: https://www.optimistdaily.com/?p=1422764 If you have ques...

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 surprise you. Ten solutions this week with Arielle and Karissa. Also in the episode: energy storage technologies that sound...

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 itself. Arielle and Karissa also get into the neurological reason summer keeps slipping away, an Oxford trial where eight weeks of salsa cl...

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 cruise ship. Ten solutions this week with Arielle and Karissa, including the first gallery in history dedicated entirely to women ar...

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 Arielle and Karissa: the world's first exome therapy for burn patients, a California canal that generates electricity while cutting wat...

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 behavior, which is the part that feels almost too good to be true. Alongside that, Arielle and Karissa cover the two heat domes expec...

A study of more than 100,000 people across 125 countries found that people cooperate far more than they assume other people will. Hopeful news to receive in a world that feels so divided. This week Arielle and Karissa also cover gig worker rights getting their first-ever international vote, Pakistan scrapping its period tax after two young lawyers made it too hard to ignore, a farmer in rural Afri...

Tala and Farah Mousa received thousands of messages after they won the Earth Prize. "You gave us hope we had completely lost," people wrote. "You showed us we can be seen." They were sheltering in a tent when those messages came in. This episode is about what it takes to build something: a real, physical method for turning rubble into building blocks, while living inside the rubble. Arielle speaks...

A high-risk breast cancer diagnosis used to mean one thing: chemotherapy. A large UK trial just found that 68 percent of those patients could skip it safely, based on a genomic test that already exists and is already in use. Arielle and Karissa also get into the pigeon liver finding that stumped scientists for over a century, a California city that voted to permanently ban data centers, and France...

An oncologist cried at her desk when she read these latest trial results. Researchers put exercise wheels in empty fields and sand dunes, and wild mice found them and ran, unprompted, for no reward. A new drug just cleared hepatitis B from the body entirely for one in five patients. Not suppressed. Cleared. Arielle and Karissa also get into a 55-year study proving that banning toxic forever chemic...

Sir David Attenborough just turned 100! Arielle and Karissa cover his 10-minute secret to a long life along with seven other solutions this week — belugas who prove that their species is capable of recognizing themselves, hemp plastic that survives boiling water, and an ocean sanctuary that might make fishermen richer by protecting the fish they can't catch. Transcript link: https://www.optimistda...

Stephanie McKenzie has been swimming since she was a child. She came to Swim Sista Swim as an instructor and, as you'll hear in her voice, is a vibrant and confident woman on all counts. Yet she still feels a twinge of doubt every time she walks into a public pool alone, still notices that more often than not, she's the only one there who looks like her. That's what Swim Sista Swim is trying to ch...

Europe's first stadium built exclusively for women's football is going up in Brighton! And the most interesting design decision wasn't the pitch. It was the size. Arielle and Karissa cover ten solutions this week, including a single injection that gave a child her hearing, two teenage sisters in Gaza who are up for a global environmental prize, and what China just crossed in green hydrogen capacit...

For the first time in history, clean energy grew faster than global electricity demand and fossil fuel generation actually went down. That's not even the most surprising thing in this episode. Arielle and Karissa cover ten solutions this week, including a UK law that bans the legal purchase of tobacco forever , a bridge that was never going to have a car lane, and the growing case for making your...

This week, a 58-day protest campaign just convinced Etsy to ban all animal fur starting this August. Germany spent decades digging coal out of the ground, leaving craters 200 feet deep. This month, the last one opened for swimming. And Cambodia unveiled the world's first statue dedicated to a landmine-detecting rat. Arielle and Karissa also get into why wildflowers are thriving in city cracks (tur...

This week: a German research team built a water contamination test that runs on a smartphone and gives you an answer in under a minute. A Cornell professor has a gardening trick that involves water, a paper towel, and one night. A Bristol startup figured out what to do with festival urine! Arielle and Karissa also talk about the psychology of why you keep falling for the same type, Earth Day turni...