• Air pollution, mercury, air toxics

    Sidelining Science

    The Trump administration is attempting to weaken mercury and air toxics protections.

    Read our blog >

Science for a healthy planet and safer world.

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Our Progress

A Win for Nuclear Fuel Security

UCS has worked for years to halt plans for a “MOX” plant that would turn surplus weapons plutonium into nuclear fuel, arguing that the proposition would increase the risk that weapons useable material could fall into the wrong hands. The Department of Energy has officially terminated this project.