Circularity
Understanding the value of a circular economy and identifying circular solutions are essential to changing our world for good. Circularity, or the zero-waste principle of keeping materials in a closed loop and away from landfills and incinerators, is the future. Find out about the latest innovations and solutions accelerating the transition towards a circular economy in the articles here from The Optimist Daily.
How Reefvive is rebuilding coral reefs from discarded oyster shells
BY THE OPTIMIST DAILY EDITORIAL TEAM Most artificial reef structures are built from concrete. Concrete is smooth, and smooth surfaces give young coral little to grip. A team of students at National Taiwan Normal University built their version from something else entirely: ground oyster shells Read More...
Berlin's REWE supermarket: the grocery store with a working rooftop farm
BY THE OPTIMIST DAILY EDITORIAL TEAM The lettuce in REWE's Lankwitz store in Berlin has had a short morning. Grown on the rooftop farm directly above, cut, packaged by hand, and carried downstairs before most shoppers walk in, the whole trip from farm to shelf is measured not in miles but in Read More...
The world's largest battery-electric ferry just crossed an ocean
BY THE OPTIMIST DAILY EDITORIAL TEAM In 2019, a South American transport company ordered a diesel ferry. By the time it launched six years later, it had become the largest electric vehicle ever built, of any kind, on land or sea. Hull 096 is a 130-meter (427-foot) battery-electric ferry built Read More...
Elementic's MO6 is the building material claiming to lock away carbon for thousands of years
BY THE OPTIMIST DAILY EDITORIAL TEAM Lignin is the part of wood that paper mills and timber companies tend to get rid of. It comes off as a byproduct when wood is processed, resists most conventional uses, and usually ends up burned for energy. A Finnish materials startup called Elementic Read More...
How Colombia's outgoing president protected 42% of the country's Amazon from mining
BY THE OPTIMIST DAILY EDITORIAL TEAM On August 4, 2026, three days before he left office, Colombian President Gustavo Petro signed a resolution placing 186,500 square miles of the Amazon off-limits to any new extraction. That means no new mining concessions, no new oil or gas contracts, and no Read More...
Climate attribution science just changed the rules for fossil fuel lawsuits
BY THE OPTIMIST DAILY EDITORIAL TEAM Scientists can now draw a straight line from a single oil company's emissions to a specific disaster. Not a rough estimate of the industry's overall contribution, but a specific company, a specific event, a specific percentage. That's what a new Read More...
Meet the Bioloon: the biodegradable balloon aiming for shelves by 2028
BY THE OPTIMIST DAILY EDITORIAL TEAM Balloons have always been made from natural latex, a material derived from rubber tree sap. Natural latex is biodegradable. The rubber tree has been producing it since before the first balloon was invented in 1824. On its own, it breaks down. The problem is Read More...
6 useful things to donate before back-to-school season this year
BY THE OPTIMIST DAILY EDITORIAL TEAM Back-to-school season is a great time to donate. Kids have outgrown things. Backpacks didn't survive the year. Notebooks never got opened. Most of it ends up in the trash, and a smaller portion ends up at Goodwill, where it's gone in days. "The school year Read More...
The world hit 3 terawatts of solar power faster than anyone predicted
BY THE OPTIMIST DAILY EDITORIAL TEAM The first terawatt of global solar capacity took nearly 68 years to reach. The second arrived in roughly two years. The third came in 19 months. The world crossed the 3-terawatt mark in early 2026, and the pace is still picking up. In 2025 alone, the world Read More...
How Niger restored 5 million hectares without planting a single tree
BY THE OPTIMIST DAILY EDITORIAL TEAM In 1983, an Australian agricultural adviser named Tony Rinaudo was working in the Sahel when he noticed something that didn't fit the picture everyone had of the region. The land looked barren. But beneath the depleted soil, root systems were still alive. Read More...