Adaptation Planning Made EISI:The New EISI for Extreme Heat Online Tool

EISI Adaptation Tools
For the last decade, the Tribal Climate Health Project has worked with Tribes to make it easier to understand and address their climate and health vulnerabilities. We are proud to release our latest data tool for California Tribes, designed to reduce the burden of assessing and planning for the unique impacts of extreme heat on their communities.    

EISI For Extreme Heat Online Tool
Through two state Tribal Research Grant awards (1, 2), the Pala Band of Mission Indians, Public Health Alliance of Southern CA, and Prosper Sustainably teamed up to create an online extreme heat edition of the Tribal Climate Health Project’s Exposures, Impacts, and Strategies Inventory (EISI) Core tool, the program’s hallmark Excel-based tool, which covers all climate exposures. 

The new EISI for Extreme Heat Online tool is a free interactive web application that streamlines the process for California Tribes to develop extreme heat vulnerability assessments. Users can now easily access publicly available data on extreme heat vulnerability and be guided through many elements of the extreme heat vulnerability assessment process for their Tribe.

This tool allows users  to:

    • Assess extreme heat exposures and secondary exposures
    • Prioritize community assets
    • Evaluate and prioritize extreme heat impacts
    • Consider extreme heat adaptation strategies
    • Generate a data summary and a customizable and editable vulnerability report*
*EISI for EH’s report template is based on Prosper Sustainably’s adaptation planning process developed for Pala and the Tribal Climate Health Project originally in 2017-2019 and refined, updated, and iterated with many Tribal clients since, with the most recent refresh of citations conducted in 2025. Through this project, we are honored to make this template available to Tribes through the customized adn editable format programmed by Public Health Alliance of Southern California. 

We appreciate the work of our partners, the funding support from the California Energy Commission, and the invaluable input from our Tribal Advisors, which helped inform the development of the tool.

Request Technical Assistance
To request help using the Tribal Climate Health Project tool, please contact tchp@prospersustainably.com or book one-on-one technical assistance with the TCHP team here.

2025 Tribal Climate and Health Adaptation Summit

Realities of Tribal Climate Disaster Resilience

Fall 2025

Guided by the theme “Realities of Tribal Climate Disaster Resilience,” the Summit focused on arming Tribal-serving professionals with the knowledge and skills needed to prepare for and act during climate change-related emergencies – such as extreme temperatures, wildfires, and storms – that may affect the Tribes they serve. 

Throughout this one-day training, Tribal-serving professionals working at the intersection of climate change, health, and community wellbeing participated in interactive instruction and peer-to-peer learning activities that built knowledge and resilience in the face of climate emergencies and disasters. Organizers, guest speakers, and attendees were invited to share recent findings, successful practices, and resources that are increasing Tribal resilience to a variety of climate exposures throughout the US. The summit provided opportunities for attendees to reflect individually and connect with each other. The summit also recognized Tribes for significant progress in championing climate and health adaptation.