What We Have Learned About the Air We Breathe


Local scientists perform sampling of air quality, contaminant pollution levels, uncover pollution far above EPA safety thresholds in Comal County, Texas.

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Bracken Cave Bat Experience


Wednesday, September 11, 2019: Experience the spiraling emergence of over 15 million Mexican free-tailed bats—the largest bat colony on the planet—as they begin their evening hunt.

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Texas Hill Country at Risk from Aggregate Mining


The unique natural resources of the Texas Hill Country are at increasing risk from aggressive expansion by aggregate mining companies proposing numerous rock quarries and cement plants throughout the region.

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Media Coverage


TV, radio, and newspaper media coverage of the proposed Vulcan quarry in Comal County, Stop 3009 Vulcan Quarry, and Friends of Dry Comal Creek.

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