Members of the Kumeyaay Nation met with Indigenous leaders from around the world this week to discuss Indigenous ecological knowledge and envision how cities can incorporate it into their sustainability plans.

Held in celebration of Indigenous Heritage Week and Native American Heritage Month, the Sustainable Design Forum provided a space for Indigenous people to exchange their expertise on global issues such as wildlife conservation, climate change, deforestation and reef preservation.

The weeklong event featured panel discussions with leaders as well as cultural activities across the city, including a tule boat launch, art displays and a showcase of Indigenous films.

It was organized by San Diego Sister Cities and UC San Diego Global Initiatives and co-hosted by the Kumeyaay and Maasai people, an Indigenous group from Kenya.

The event highlighted the commonalities between Indigenous people across the globe — from the Tembé people of Alto Rio Guamá, Brazil, Ryukyuan people from Okinawa, Japan, to the Noongar and Nhanda Yamaji people from Perth, Australia — in their struggle to preserve their land and ways of life.

“The land that we come from is on both sides of the border: Half is on this side, another half is in Baja California, Mexico,” said Stan Rodriguez, president of the Kumeyaay Community College, to a group during the forum on Thursday.

After having suffered against centuries of colonization, “it’s important for us to keep our identity of who we are as Native people,” he added. “And that struggle is worldwide.”

Other local tribal members were also a part of the forum, including Stephen Cope, the chair of the San Pasqual Band of Mission Indians, and artist Johnny Bear Contreras, who moderated the panel discussion and recently created a living land acknowledgement sculpture installation at San Diego State University.

Several of the international leaders were welcomed to San Diego on Monday at the San Pasqual Reservation Cultural Center in Valley Center, including Walter McGuire, of the Noongar people from Australia, who performed an Aboriginal song using boomerangs as musical instruments.

“This has been a dream to bring us all together,” said Jessica Censotti, the executive director of San Diego Sister Cities, during the welcome ceremony.

Sister Cities International was founded in 1956 by President Eisenhower to establish connections based on “citizen diplomacy” — where residents could collaborate on economic, cultural, educational and community development without the influence of governments.

San Diego’s chapter was created more than 60 years ago and has 24 partnerships in 23 countries. But the Sustainable Design Forum, which has been in the works for nearly two years, is the first Indigenous gathering.

“We didn’t want just city-to-city, government-to-government,” Censotti said. “It was important … to bring Indigenous leaders together to create unity.”

Nashipae Nkadori, a member of the Maasai people of Kenya, said on Thursday evening before the panel discussion that she was most looking forward to sharing how her community is working to improve access to water. Currently, people must often walk 10 miles in the heat for water.

Other Maasai representatives were set to discuss wildlife conservation and how Kenyans can coexist with wild animals outside of designated parks.

“I’m looking to learn from the people who are not from Kenya,” she said, as well as encourage other communities to “join our efforts in some of the work we’ve been doing.”

Nkadori described the Maasai as “the face of Kenya” and noted that the tribe has worked to maintain its cultural traditions and lifestyles amid modernization across the country. But they have been forced to change in some ways.

The Masaai are considered pastoral, living semi-nomadically as they move with their livestock. But over recent years, climate change has led to severe famine and droughts, as well as economic shifts, and families can’t afford to raise as many animals as in the past.

Thousands of miles away in Japan, the Ryukyuan peoples have faced their own challenges.

Gabriel Sink traveled from the island of Okinawa with his sister and Kinjo Koji, a marine researcher who has played a key role in coral transplantation. Coral bleaching, caused by rising sea levels, has devastated large swaths of Okinawa’s reefs.

Sink, 22, said he’s glad to be able to help share Koji’s work on the global stage, especially since Okinawa is a small island and many of its inhabitants, especially those who are older, aren’t tech-savvy.

He’s also grateful to connect with other Indigenous communities that have faced years of oppression yet keep fighting for their languages and cultures.

“It’s so cool that everyone can meet up here,” Sink said. “I feel less alone.”