State laws and policies in California have made some progress possible, but many tribes still lack legal recognition and struggle to maintain their cultural heritage and the environment.

Populations of the green sea turtle, or honu, increased as the Hawaiian language made a comeback. Saving other languages from extinction could help protect biodiversity.

A coalition of public and private entities hopes to revive both fish and water supplies in a hotter, drier climate.

Water managers say no, but Native American tribes are keeping careful watch on the “water that connects us.”

A national tribal climate-change conference highlights impacts to culture, heritage and survival.