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Europe removed a record 602 river barriers last year
BY THE OPTIMIST DAILY EDITORIAL TEAM A dam fell in Iceland last December, the first the country has ever deliberately dismantled. The structure on the River Melsá had long since stopped generating power. Sheep were living in the old powerhouse. “It wasn’t providing any electricity,” said Read More...
California’s first eight-hour grid battery just came online
BY THE OPTIMIST DAILY EDITORIAL TEAM The California grid has a timing problem. Solar runs from mid-morning through early evening. Demand peaks later. Batteries have bridged part of that gap for years, but only about four hours’ worth. On June 1, a project in Kern County doubled that Read More...
4 fruits that may help reduce your breast cancer risk
BY THE OPTIMIST DAILY EDITORIAL TEAM High fruit intake is associated with many wonderful health benefits, like protecting our lungs from air pollution and lowering diabetes risk. But did you know it's also linked to a seven percent lower risk of breast cancer? The compounds driving that Read More...
How reflective roof paint is cooling homes across Africa
BY THE OPTIMIST DAILY EDITORIAL TEAM The question seemed reasonable enough: what heat adaptation interventions were already working in Africa’s low-income communities? Lara Dugas, an epidemiologist, and climate scientist Mark New had received funding from the Wellcome Trust’s HeatNexus Read More...
5 small habits that make every day feel more meaningful
BY THE OPTIMIST DAILY EDITORIAL TEAM The feeling of not mattering, of going through a whole day without anyone really seeing you, sits closer to the surface than most people let on. Jennifer Breheny Wallace has spent years studying this. In her new book Mattering, she frames it as a gap: the Read More...
11,000 jobs, $1.4 billion in savings: what a decade of green banking built in Philadelphia
BY THE OPTIMIST DAILY EDITORIAL TEAM An impressive $14.7 million from the city. $1.3 billion in economic investment returned. $1.4 billion in energy savings. 11,000 jobs created. Those are the results of the Philadelphia Energy Campaign’s first decade, according to a 10-year economic impact Read More...
Research reveals honeybees use the same face-reading strategy as humans
BY THE OPTIMIST DAILY EDITORIAL TEAM The human brain contains approximately 86 billion neurons. A honeybee brain contains roughly one million, packed into about one cubic millimeter. That brain, it turns out, can learn to tell human faces apart. The research goes back more than two decades. Read More...
Podcast Transcript June 12th, 2026— From a 340-year slavery law finally repealed to pancakes for cigarette butts: 10 solutions this week
Episode Description: 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 Read More...
5 habits that separate growing teams from stagnant ones
BY THE OPTIMIST DAILY EDITORIAL TEAM The strategy is fine. The team is capable. But at the end of the quarter, the needle hasn’t moved. Julie Turpin, Chief People Officer at Brown & Brown, says this pattern almost always traces back to the same thing: habits. “Results that stick are Read More...
Dinner scraps are rebuilding California’s lost oyster reefs
BY THE OPTIMIST DAILY EDITORIAL TEAM What if scraps from a dinner could become a habitat? That's the basic premise of the Shells for Shorelines program in a meaningful sense: the shells of oysters eaten at restaurants in Orange County can become the foundation on which new oysters settle and Read More...