While small amounts of radioactive material are naturally occurring, human activities have increased radioactivity in the ...

Radioactive materials are elements that spontaneously break apart, or “decay,” into lighter elements over time. Radiation is ...

The distribution of radiation throughout the body, whether in a target organ or more systemically (e.g., circulating blood), ...

This fact sheet provides best practices for drawing fair legislative district maps by encouraging greater public ...

Essential readings for understanding the world of radiation, radioactive materials, and the threats they pose to human health ...

Radiation is associated with a wide range of adverse health outcomes, including acute radiation sickness, burns, cancer, ...

Nuclear weapons are still here—and they’re still an existential risk. Nine countries possess nuclear weapons: the United States, Russia, France, China, the United Kingdom, Pakistan, India, Israel, and ...

The science is clear: climate change is happening. We are the cause. We need to act now. Table of Contents The science is clear: climate change is happening. We are the cause. We need to act now.

As the senior scientist and director of the Food and Environment Program at the Union of Concerned Scientists, Ricardo Salvador has over four decades of experience working with citizens, scientists, ...

Camille Parmesan is the National Marine Aquarium Chair in the Public Understanding of Oceans and Human Health at the Marine Institute, University of Plymouth, in the United Kingdom. She is also a ...

Roughly 9,500 nuclear weapons are hidden away in bunkers and missile siloes, stored in warehouses, at airfields and naval bases, and carried by dozens of submarines across the world. A single warhead ...