Skip to Navigation
Skip to Content
Share this page

Support PSR!

Make a difference in the challenge to confront global warming and prevent nuclear war and the development and use of nuclear weapons.

Donate Now »

Take Action

Attention FEDERAL GOV'T EMPLOYEES – The Combined Federal Campaign is ON! Please give to PSR through your paycheck by signing up for an automatic CFC donation. PSR's CFC code is 10640.

Climate and Health Effects of Regional Nuclear War

Recent studies have shown that even a “limited” nuclear conflict, involving as few as 100 Hiroshima-sized bombs, would have global climate implications. Among the most serious consequences, a significant cooling of the earth's surface would curtail growing seasons for a decade or more, affecting the food security of billions of people far removed from the area of conflict. 


Browse Resources

Action Alerts

More action alerts»


In the Spotlight

  • September 28, 2016
    Speaking Tour: Heat Advisory
    PSR's Dr. Alan Lockwood will visit 6 states this fall to highlight the health effects of climate change and speak about his new book, Heat Advisory.