London Mayor Sadiq Khan announced Oxford Street will go traffic-free on October 26, closing nearly a kilometer of the West End to all vehicles.

Berlin's Gieß den Kiez app tracks 900,000 street trees in real time, and lets 12,000 volunteers coordinate watering; any city can access the open-source code.

King Mohammed VI appointed Fatima Ezzahra El Mansouri as Morocco's first woman prime minister on September 29, making her the third in the Arab world.

A physical therapist and run coach break down the running shoe myths, from max cushioning to carbon plates, and what research shows instead.

A new study found that eating with a companion leads to better blood sugar control. The science behind why your body regulates itself better in company.

An ornithologist shares six simple changes to attract more birds this fall, from fruiting shrubs and moving water to brush piles that migrants genuinely seek.

The UK has 18 million people with hearing loss and no dedicated Deaf cultural center. Urban planner Amanprit Arnold is determined to build one.

Wisconsin's first certified forest bathing trail just opened in Eagle River. Learn how the Japanese practice of Shinrin-yoku does more than a regular walk.

Portugal deploys 30,000 sterile male mosquitoes in Lisbon to test whether competing males can reduce Asian tiger mosquito reproduction.

UK researchers have developed a urine and vaginal fluid test that could spare thousands of women from invasive womb cancer investigations.

Argentina's Tren Solar runs 42 kilometers through the Andes on batteries charged by solar energy, with no diesel or overhead lines needed.

Turmeric, garlic, ginger, oregano, basil, and rosemary all contain compounds that support immune function. Here is what dietitians say about using them.

Podcast Episode · The Optimist Daily's Weekly Roundup · September 25 · 26m

London is doubling Dolly Parton's Imagination Library to 10 boroughs, making 157,000 more children eligible for a free book every month.

Noise exposure adds up daily and its effects go beyond hearing loss. An audiologist explains the risks and the practical steps that make a real difference.

Colorado's Greenland wildlife overpass cut I-25 wildlife collisions by 91 percent in nine months, coming in under budget at $15 million.

Nominations open for the 2026 Optimist Daily's Local Changemakers Series.

Athens' Ellinikon park replaces a former airport with 200 hectares of climate-engineered green space, opening in 2027 as Europe's largest coastal urban park.

Soft productivity is a gentler, more intentional approach to work. Here's what it means, why it prevents burnout, and how to start practicing it.

Ethiopia claims to have planted 48 billion trees since 2019. Its annual deforestation rate dropped roughly 70 percent in the same decade.

A Cambridge University review found reading for pleasure boosts memory, lowers stress, and cuts dementia risk at any age.

Nominations open for the 2026 Optimist Daily's Local Changemakers Series.

A small spotted wildcat in Bolivia's Yungas forest has been confirmed as a new species, the first feline formally named in over a century.

South Korea recycled 2.6 percent of food waste in 1996. Today it's nearly 97 percent. New York City became the latest city to follow its lead.

A student team in Taiwan is 3D-printing reef bases from oyster shells and coral gravel. All 28 coral fragments survived their first ocean trial.

Gut bacteria convert pomegranate and berry compounds into urolithin A, a metabolite that activated a protective gut repair pathway in a new study.

Nearly 50 bison were reintroduced to a Mexican desert reserve in 2025. Within months, pumas, lynxes, and rare plants are returning too.

That soft clump of dryer lint doesn't have to go in the bin. Here are eight practical ways to put it to work around the house.

An Indian startup is combining trained dogs with AI to analyze breath samples, reporting over 90 percent accuracy across seven cancer types in a new study.

An Indian startup is combining trained dogs with AI to analyze breath samples, reporting over 90 percent accuracy across seven cancer types in a new study.

A Berlin supermarket's rooftop farm grows lettuce a few meters above the checkout and sells it downstairs. This is what urban food could look like.

Research shows hobbies add eight hours of joy per week. Here are eight low-cost ones worth starting, including a few you probably haven't tried.

The world's largest battery-electric ferry arrived in South America after sailing from Tasmania. Here's what makes Hull 096 a milestone for maritime transport.

Travel scams are harder than ever to spot. Here's what security experts say to watch for before the holiday rush.

News Podcast · Updated Daily · Do you like the stories from around the world that recognize and celebrate the people and events making a positive change? Tune in to The Optimist Daily's Weekly Roundup...

Baked Bites is a student-led nonprofit in Frisco, Texas, raising money for food-insecure children and families through homemade cookies and community pop-ups.

Stella Juva is a solar ambulance built by Dutch students that generates more power than it uses and brings healthcare to remote communities off the grid.

Finnish startup Elementic's MO6 wall tile is made from wood industry waste and stores twice the carbon of timber, potentially for thousands of years.

The UN voted 164-1 to replace the Mercator map with a projection that accurately reflects Africa's size. Only the United States voted against it.

In a 67,000-patient trial, an AI tool spotted heart failure 81 percent of the time from a standard ECG, cutting months off the path to diagnosis.

Wind turbines weren't designed to create marine habitat. Eight years of data from Taiwan suggests that's exactly what they're doing around New York.

New York City is banning AI for more than 500,000 students through eighth grade, the most expansive moratorium any US school district has issued.

Eye drops that respond to light restored vision in blind mice without surgery or gene therapy, a potential path for 200 million with degenerative blindness.

Thrift stores aren't the only option when you're clearing out. Here are six places where your donations meet a real, specific need.

An at-home urine test detected 92 percent of bladder cancer cases and ruled it out with 99 percent accuracy in a 1,000-patient NHS trial.

An at-home urine test detected 92 percent of bladder cancer cases and ruled it out with 99 percent accuracy in a 1,000-patient NHS trial.

Research shows managers consistently rank lowest on coaching — and the problem might be how we define it in the first place.

A world-first trial of nearly 10,000 adults over 70 found daily statins cut cardiac event risk by 30 percent, with no link to dementia.

Choosing a fertility clinic takes more than a Google search. Reproductive endocrinologists share what to ask about labs, storage, credentials, and cost.