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Houston Harris Heat Action Team H3AT Mapping Campaign

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The Houston Harris Heat Action Team’s (H3AT) H3AT Mapping Campaign project started in 2020 and is being repeated in the summer of 2024. The 2024 H3AT team is made up of HARC, the City of Houston, Harris County Public Health, Harris County Office of County Administration, Harris County Precinct 4, Student Conservation Association, and the National Weather Service.*

The purpose of these campaigns is to measure the temperature and humidity in Harris County on a hot summer day – “Campaign Day”. The H3AT Mapping Campaign relies on community volunteers to help capture data at three separate times on Campaign Day. With this data, temperature maps are created which will allow for better project design and policies that can address heat-related health issues across the region. It can also support decision makers and government officials in their urban planning and in identifying areas that are most vulnerable to heat; helping to develop policies and practices to improve the lives of Houston area residents.

Urban areas are especially prone to high temperatures due to a combination of hard surfaces (buildings and roads), limited green spaces, and heat-producing factors like car use and industrial activity. This problem, known as the “Urban Heat Island Effect”, can create issues for human health, infrastructure, and quality of life. Understanding how temperatures vary based on qualities of the natural and built landscape can inform how we reduce the impacts of rising summer temperatures in our communities.

This campaign is being made possible through funding provided by the Inflation Reduction Act and the USDA Forest Service, Urban and Community Forestry Program. This is part of a larger initiative called ForUsTree: Creating an Inclusive Community Canopy within Houston and Harris County, which aims to increase tree canopy, foster community resilience, and improve access to employment in underserved communities in Houston and Harris County.

*These institutions are equal opportunity providers.

To learn more about the latest H3AT Mapping Campaign and results from the 2020 campaign, visit www.h3at.org


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