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GEMS: Great Environmental Moments in Science

Father and son walking on beach at sunset

Keeping Beaches Safe… with Statistics!

EPA researchers and partners are creating tools to help beach managers protect public health.


Underwater image of dying aquatic life

Into the Dead Zone

EPA researchers are creating a state-of-the-art three-dimensional model of the Gulf of Mexico's dead zone.


Yellow ocean glider on boat

Beneath the Surface

Glider surfs underneath the ocean, delivering new data about coastal waters.


Image of a rain garden

Why Study Green Infrastructure?

EPA scientists and engineers are exploring how to tap green, effective, and low-cost methods to improve stormwater management.


Screenshot of Stormwater calculator interface

Stormwater Calculator to Manage Rainfall Runoff

A new tool developed by EPA allows planners and property owners to assess how green infrastructure can be used to reduce rainwater runoff from development sites.


Two researchers examining a soil core

Helping Cities Benefit from Green Infrastructure

EPA provides research and guidance on the incorporation of green infrastructure into Omaha’s combined sewer overflow control plan.


Health and Safety personnel descends into underground tunnel.

Showing Buried Streams the Daylight

Researchers compare the effectiveness of buried streams versus open-air streams for removing harmful nitrogen from water systems.


Child drinking water out of a glass outside.

Public Database Helps Users Provide Clean Drinking Water

EPA’s Drinking Water Treatability Database provides a one-stop shop for information on contaminants and treatment options.


Cargo ship traveling in open water.

New Ballast Water Protocols Designed to Stop Invasive Species

EPA Partners with Coast Guard to Develop Ship Treatment System Protocols.


Illustration of electric lightbulb combined with a globe

Small Businesses Keeping Our Water Clean and Protected

EPA’s Small Business Innovation Research Program supports innovative environmental technologies.


Photo of the Salinas River in California

Strengthening Streams in California

The State of California employs EPA's causal assessment CADDIS tool to identify and treat problems in waterways.


Two EPA researchers collecting wetlands samples.

Keeping an Eye on Wetlands

EPA researchers develop ways to study, assess, and report on the state of the nation's wetlands.


Photo of a water valve

Protecting Drinking Water from Re-contamination

EPA scientists advance understanding of how biofilms in a drinking water system can harbor harmful bacteria following decontamination.


Photo of river surrounded by trees

Planning Better for a Changing Climate

EPA researchers and partners develop assessment tools to help communities make better informed environmental decisions.


Test tubes on blue background with plants inside.

Tools to Assess Potential Water Contaminants

EPA researchers are developing high tech tools called "Dashboards" to help assess potential water contaminants.


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