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 ...

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

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

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

Adam Markham is deputy director of the Climate & Energy program at the Union of Concerned Scientists. He helps lead UCS efforts to persuade policymakers to rapidly and effectively respond to the ...

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

The energy business is one of the largest industries in the world. Major fossil fuel companies routinely make billion-dollar profits, extracting and distributing oil, gas, and coal. Unfortunately, ...

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.

Rachel Cleetus is the policy director with the Climate and Energy program at the Union of Concerned Scientists. She leads the program’s efforts in designing effective and equitable policies to address ...

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 ...

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 ...