Chelsea Ritter-Soronen is a multi-disciplinary visual artist, small business owner and public arts consultant. She is the Founding Principal of Ground Shift Studio, a mural company specializing in pavement art, established in 2013 (originally named Chalk Riot).

Ground Shift Studio is a Washington, D.C.-based public art and consulting studio working at the intersection of art, transportation, and climate resilience. Founded by artist and urbanist Chelsea Ritter-Soronen, the studio treats the ground beneath our feet—streets, sidewalks, plazas, and other paved surfaces—as both a canvas and a piece of public infrastructure.

Uchimizu (打ち水) is a traditional Japanese practice of sprinkling water on streets, sidewalks, and other outdoor surfaces to cool the surrounding area. As the water evaporates, it draws heat from the pavement and air, offering a simple, low-tech response to hot weather. Historically, the practice has also been associated with suppressing dust and welcoming guests.

Sheila Foster is a leading scholar of cities, democracy, and the urban commons. Her work explores how communities share responsibility for the public spaces, institutions, and resources that shape everyday life—and how collective stewardship can make cities more equitable, democratic, and inclusive.

In Sunamganj, Bangladesh, communities work with government engineers to build and dismantle portions of a submersible embankment each year—protecting rice crops before harvest while allowing seasonal flooding afterward. The project combines local knowledge, ecological adaptation, and community participation in an unusual model of co-produced infrastructure.

Iffat Baki Bushra is an urban and transportation planner whose work explores infrastructure, mobility, and community participation. She joined Sidewalk Ballet to share her research on a remarkable submersible embankment in Sunamganj, Bangladesh, where local knowledge and community participation are integral to adapting infrastructure to the rhythms of the landscape.

Karen Christensen is an author, publisher, and community leader whose work spans culture, sustainability, and the power of networks. As the founder of Berkshire Publishing Group, she has long championed ideas and institutions that strengthen communities. Her forthcoming book, written in collaboration with Ray Oldenburg, revisits and reimagines the concept of the “third place” for today’s world.