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GEMS: Great Environmental Moments in Science


Listening to Loons: Mercury and MERGANSER

An EPA-led collaborative effort produces a model for predicting mercury levels in New England fish and loons.

Compass pointing north

Measuring Sustainability

EPA scientists explore how to measure prosperity and environmental quality across the San Luis Basin, a large, rural area in south-central Colorado.

Computer opperator

EPA Releases Latest Community Multiscale Air Quality Model

New version offers tools for controlling air pollution and studying climate change.


Toxic Art

Meeting the President

EPA scientists develop innovative tools to assist decision-makers manage wastes from natural and man-made disasters.

Scientist with lab sample

Q& A on Hydraulic Fracturing

EPA researchers enhance nation’s scientific capacity to analyze large number of samples.

Child playing in water

A Major Step Towards Cleaner Water and Soil

EPA releases a pivotal health assessment addressing the health effects of trichloroethylene.

Poluted water with bacteria

What’s in Your Water?

EPA researchers are developing a library of natural organic matter samples to support and advance drinking water research.

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