City to Sanctuary Works

What we are seeing in schools

93%

of the Nature Connection Index benchmark for connection to nature was reached by our students

100%

of students showed measurable growth in knowledge, empathy, and care for the environment

92%

of teachers reported stronger student social and emotional skills

98%

of students report gains in well-being through nature

From 2022–2025, nearly 200 students across five Harlem public school cohorts participated in a City to Sanctuary pilot. Students completed pre- and post-assessments using the Nature Connection Index (NCI), a validated measure developed by the RSPB and the University of Essex that evaluates enjoyment, empathy, oneness, and responsibility in nature. Students showed measurable gains after just one year of participation.

Illustration of a green tree with multiple rounded leaves and a brown trunk.
A green tree with a brown trunk and multiple rounded foliage clusters.

Several cohorts exceeded national benchmarks, reached by only 21% of children worldwide.

Why it matters

Research across countries, age groups, and educational settings consistently shows that a strong connection to nature is one of the most effective drivers of students’ social-emotional well-being—and, in turn, to their ability to thrive both in and beyond school.

Silhouette of an owl sitting on a log, depicted with a glittery brown color.

Stronger attendance

Two young people standing close together near a lake with autumn trees in the background, one with their arm around the other's shoulder, smiling at the camera.

100%

of principals strongly agree that City to Sanctuary led to higher student attendance and lasting positive impact

Stylized illustration of a human heart made up of textured orange shapes with visible black veins against a black background.

“This student isn’t in my class anymore but he made a point to come ask me for the permission slip on his own, without any reminder. He’s written down every trip date and remembers them all. He takes full responsibility for making sure he’s here each time, which I think is really telling.”

— Ms. Hanafy, Teacher, HSCJ

Enhanced behavior and focus

A group of children gathered around a woman scientist by a creek in a forest, engaging in nature exploration and possibly observing aquatic life.

84%

of teachers report that students who usually struggle with behavior or focus showed improvement during or after the program

Green frog silhouette with a textured pattern on a black background.

“I think sometimes the kids that we’ve taken who have had challenging behavior have really benefited the most from being outdoors, and I think sometimes those are the kids who need these opportunities the most.”

— Suzanne, Special Education Teacher

100% of principals strong agree that City to Sanctuary provides equitable access to meaningful outdoor experiential learning for all students in their high-need schools

Increased well-being and engagement

A group of children with varied skin tones gathered closely together outdoors, looking at an object that one child is holding and examining.

92%

of teachers observed noticeable social and emotional growth in their students during or after participating in the program

“It has been incredible to see all students, including those who are normally shy or often disengaged in the classroom, take on such an active role in participating during these trips.”

— Suzy, High School Teacher

Teachers are recharged

A group of young people, including children and adults of diverse ethnicities, gathered outdoors in a forest with colorful autumn trees. An older man in a gray beanie and glasses appears to be signing an item for a girl, while others are smiling, taking photos, and engaging with each other.

92%

of teachers report a positive impact on their well-being and reduced stress

“The kids enjoy coming. I did enjoy hiking through the woods. Being on the trail gave me a sense of relaxation. Plus, it was great seeing the kids get so excited about what they were witnessing. One of my students said, ‘It was like we were on TV.’ He was referring to the nature shows that he watches.”

— Ms. Johnston, Teacher, PS 197

School culture revived

A group of children and adults smiling and posing for a photo in front of a sign that reads "Westmoreland Sanctuary" in a forested area during fall.

88%

of principals report the program strengthens teacher student relationships

“My favorite experience this year was the Sanctuary trips… It was great seeing everyone come together and enjoying the moment as well as seeing that it is still possible to make changes to help the Earth.”

— Mileni, High School Student, HSCJ

Stylized drawing of three evergreen trees and a pine cone against a black background.

Take the first step

Help your students build confidence, curiosity, and connection.

I am interested