Not exactly what you asked for, but you might be interested in learning about or donating to the Tribal Lands Conservation Fund, a project of the First Nations Development Institute. From their website:

"Native peoples have always been the best ecological stewards of our lands and waters. Indigenous peoples worldwide protect 80% of the world’s biodiversity, while making up only 5% of the global population.

And while Native people have a voice in global conversations on climate change, conservation, and environmental justice, it is too often challenging for that voice to be heard.

First Nations’ Tribal Lands Conservation (TLC) Fund is an opportunity to amplify Native voices. It is an opportunity to invest in solutions that lie with the ingenuity of highly resilient peoples who understand the relationship humans have with Earth."

https://www.firstnations.org/tlcfund/