Today’s Solutions: December 17, 2025

Back in January, we wrote about a new 20,000 square meter outdoor light installation from the Rotterdam-based Studio Roosegaarde that is meant to make outdoor agriculture even more sustainable while dually turning crop fields into a work of art. 

Today, we bring you the latest design from Studio Roosegaarde: a lamp called Urban Sun that uses ultraviolet radiation to sanitize outdoor spaces. With Urban Sun, Studio Roosegaarde hopes to make public gatherings possible again in the Netherlands and other places around the world.

“We can make places up to 99.9 percent virus-free in minutes, depending on weather and location, so the chance of getting sick or infecting each other is strongly diminished,” said founder Daan Roosegaarde.

Launched this year, the lamp can be hung up above a public space and uses a type of ultraviolet light called far-UVC that Roosegaarde claims can sanitize the air beneath the lamp within two minutes. A report from the science journal Nature, published in 2020, suggests otherwise, claiming it would take up to 11.5 minutes for far-UVC light to destroy up to 99.9 percent of airborne coronavirus particles. Nonetheless, Urban Sun could help make locations such as train stations, schools, and public plazas safer.

“The goal is not to say that we don’t need the vaccine or that we don’t need masks,” said Roosegaarde. “Urban Sun doesn’t cure coronavirus, but it does allow social gatherings to be safer.”

In the future, Roosegaarde hopes to take Urban Sun to events such as the Olympic Games, Burning Man Festival, and other large-scale fairs and gatherings.

“Big cultural events are crucial to our culture, but right now we are surrounded by plastic barriers and distance stickers, and we’re trapped in our Zoom screens,” Roosegaarde told Dezeen. “We need to design our new normal because if we are not the architects of our future we are its victims.”

Solutions News Source Print this article
More of Today's Solutions

Southern Sierra Miwuk Nation regains ancestral lands near Yosemite in major c...

BY THE OPTIMIST DAILY EDITORIAL TEAM Nearly 900 acres of ancestral territory have been officially returned to the Southern Sierra Miwuk Nation, marking a ...

Read More

8 fermented foods that your gut will love (and that taste great, too!) 

BY THE OPTIMIST DAILY EDITORIAL TEAM Fermented foods have been a dietary staple in many cultures for centuries, but in the U.S., they’re only ...

Read More

Breaking the silence: empowering menopausal women in the workplace

Addressing menopause in the workplace is long overdue in today's fast-changing work scene, where many are extending their careers into their 60s. According to ...

Read More

Insect migration: the hidden superhighway of the Pyrenees

Insects, while frequently disregarded, are critical to the planet's ecosystems. They make up about 90 percent of all animal species and play important functions ...

Read More