Berlin mapped 900,000 street trees. Now 12,000 people water them.
BY THE OPTIMIST DAILY EDITORIAL TEAM Amanda Gläser-Bligh named her street tree Linda. Linda is a linden, eight years old, growing outside Gläser-Bligh's apartment building in Charlottenburg, and once a week during Berlin's hot months, Gläser-Bligh makes a couple of trips up and down the Read More...
London's Oxford Street gets fully pedestrianized this month: here's what that means
BY THE OPTIMIST DAILY EDITORIAL TEAM Oxford Street, one of the busiest shopping streets in the world, goes traffic-free on October 26. London Mayor Sadiq Khan announced the closure of the stretch from Orchard Street to Great Portland Street, nearly a kilometer (just under half a mile) through Read More...
DeafCity Hub and the fight to build a space where sign language can live and thrive
BY THE OPTIMIST DAILY EDITORIAL TEAM Sign language interpreters at rap concerts go viral for a reason. There's something genuinely arresting about watching BSL in full flight: the expressiveness, the grammar operating in three-dimensional space, a face carrying as much meaning as the hands. Read More...
The urban cooling gap: why planting design matters as much as canopy count
BY THE OPTIMIST DAILY EDITORIAL TEAM Street trees reduce urban heat. That much is established. What’s less settled is whether they’re enough on their own, or whether the way a city plants matters as much as how much it plants. New field research from Melbourne, Munich, and Hong Kong, led Read More...
Finland’s new bridge was built for everyone except drivers
BY THE OPTIMIST DAILY EDITORIAL TEAM When Helsinki needed to connect a growing island suburb to the city center, the planners made a decision that would be unusual in most countries: they never considered building a car lane. The Kruunuvuori Bridge, which opened to the public this past Read More...
Culdesac Tempe: purpose-built car-free neighborhood proving walkability works
BY THE OPTIMIST DAILY EDITORIAL TEAM Welcome to our Best of 2025 spotlight on the environment, which we all know is one of the most dynamic and urgent spaces for innovation and impact. This year brought some truly awe-inspiring breakthroughs in sustainability, conservation, and climate resilience. Read More...
America’s first car-free neighborhood is proving walkability works
BY THE OPTIMIST DAILY EDITORIAL TEAM In a country where the car is king, a bold car-free community in Arizona is challenging the status quo. Culdesac Tempe, a $200 million, 17-acre development, is designed to prioritize walkability, public transit, and community connection. Since its debut in Read More...
Air pollution down 40%: a look at a pedestrianized Paris
BY THE OPTIMIST DAILY EDITORIAL TEAM Paris will seem very different from how it did ten years ago when the Summer Olympics roll around this summer. Since 2014, Mayor Anne Hidalgo has led a substantial makeover in Paris aimed at reducing vehicle dependence and encouraging greener urban living. Read More...
New study reveals the link between green streets and quality sleep
In a revolutionary study published in the journal Environmental Research, researchers discovered a substantial link between living on green streets and having better sleep quality. With sleep deficiency being a major public health concern, this study highlights the critical significance of natural Read More...
Sewage heat: Vancouver's steamy and sustainable energy source
Since 2010, an innovative energy program in Vancouver's False Creek has quietly transformed the city's energy landscape. This novel technology harnesses the latent heat in sewage effluent, converting it into a renewable heat source for nearly 6,000 apartments. Derek Pope, Vancouver's manager of Read More...