The Climate Science Alliance safeguards natural and human communities in the face of a changing climate through leading activities and creating partnerships which increase awareness of climate change impacts, promote solutions, and facilitate action. The Climate Science Alliance began collaborating with southern California Tribes in 2015 to identify ways to safeguard their lands and cultures from the threat of climate change.

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In 2017, the Climate Science Alliance facilitated participation by 190 attendees representing 49 Tribes at a Southwestern Tribal Climate Change Summit. At the summit, an explicit partnership was formed out of a desire to regularly collaborate and as a result a Working Group was created. Since 2017, this Working Group convenes bi-monthly with members representing 20+ Tribes and multiple Tribal organizations from the southern California region.