Video: Can we prevent nuclear war?

Dr. Ira Helfand | TEDxVail

Ira uncovers the threat to human survival posed by nuclear weapons and what we can do to eliminate this threat. Dangers of nuclear war exist. As an existential threat to humanity, Ira asks you to take action to end nuclear in all forms forever. Together, Ira asks, “Can we prevent nuclear war?”

Ira Helfand, MD is co-President of the International Physicians for the Prevention of Nuclear War, recipient of the 1985 Nobel Peace Prize. As co-Founder and Past President of Physicians for Social Responsibility, IPPNW’s US affiliate, he knows terrible truths about nuclear war.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx

Nuclear Famine: climate effects of regional nuclear war

Nuclear Famine: climate effects of regional nuclear war

A nuclear war using as few as 100 weapons anywhere in the world would disrupt the global climate and agricultural production so severely that the lives of more than two billion people would be in jeopardy from mass starvation.

The second edition of IPPNW’s report Nuclear Famine: Two Billion People at Risk—Global Impacts of Limited Nuclear War on Agriculture, Food Supplies, and Human Nutrition explains how even the relatively small nuclear arsenals of countries such as India and Pakistan could cause long lasting, global damage to the Earth’s ecosystems.

Among the specific findings in Nuclear Famine (2012):

  • Corn production in the US would decline by an average of 10% for an entire decade, with the most severe decline (20%) in year 5. Soybean production would decline by about 7%, with the most severe loss, more than 20%, in year 5.
  • There would be a significant decline in middle season rice production in China. During the first 4 years, rice production would decline by an average of 21%; over the next 6 years the decline would average 10%.
  • Increases in food prices would make food inaccessible to hundreds of millions of the world’s poorest. Even if agricultural markets continued to function normally, 215 million people would be added to the rolls of the malnourished over the course of a decade.
  • Significant agricultural shortfalls over an extended period would almost certainly lead to panic and hoarding on an internatio
    nal scale, further reducing accessible food.
  • The 925 million people in the world who are already chronically malnourished (with a baseline consumption of 1,750 calories or less  per day), would be put at risk by a 10% decline in their food consumption.

Subsequent findings, published in 2013, paint an even grimmer picture:

  • Chinese winter wheat production would fall 50% in the first year and, averaged over the entire decade after the war, would be 31% below baseline.
  • More than a billion people additional people in China would also face severe food insecurity. The total number of people threatened by nuclear-war induced famine would be well over two billion.

“The prospect of a decade of widespread hunger and intense social and economic instability in the world’s largest country has immense implications for the entire global community, as does the possibility that the huge declines in Chinese wheat production will be matched by similar declines in other wheat producing countries.,” said the report’s author, Dr. Ira Helfand.

Addition studies by IPPNW partners, including Rapidly expanding nuclear arsenals in Pakistan and India portend regional and global catastrophe, published in 2019, shows that our original prediction was based on 5 million tons of soot – it now appears there would be 15 to 35 million. This new finding indicates that there will be an even greater negative impact on global food production.

Listen to Dr. Ira Helfand outline nuclear famine:

Nuclear Famine is the second IPPNW publication to address the global health and environmental consequences of a nuclear war using only a fraction of the more than 15,000 nuclear weapons in the world today. Zero is the Only Option: Four Medical and Environmental Cases for the Eradication of Nuclear Weapons, published in 2010, describes the severe climate disruption that would result from a “limited” nuclear war, and summarizes the medical consequences of blast, heat, and radiation from nuclear explosions.

The Humanitarian Impact of Nuclear Weapons

The Humanitarian Impact of Nuclear Weapons

Nuclear weapons are the most devastating instruments of mass murder and environmental destruction ever created. Humanity might well not survive a nuclear war using even a fraction of the arsenals in existence today.

Unlike the consequences of natural disasters such as massive earthquakes, hurricanes, and volcanic eruptions, the thousands of casualties and the catastrophic damage from nuclear weapons use—including lethal harm from radiation  and global climate disruption—are the result of human decisions. These consequences can and must be prevented by informed human action to ban and eliminate nuclear weapons.

IPPNW has compiled and presented the medical and scientific evidence about the consequences of nuclear war in order to support the case for effective steps to ban and eliminate nuclear weapons. While the science behind the blast, heat, radiation, and environmental damage produced by nuclear explosions is complex, the essential facts are easy to understand.

Why are nuclear weapons are in a class by themselves, and why do we have to consider them separately from other weapons that kill and destroy on a large scale?

  • Even a single nuclear explosion over a city can kill tens of thousands—even hundreds of thousands—of people immediately. The casualties of a nuclear war in which even a small fraction of today’s arsenals are used would reach into the tens of millions.
  • Nuclear weapons eradicate the social infrastructure required for recovery from conflict. Roads and transportation systems, hospitals and pharmacies, fire fighting equipment, and communications would all lie in rubble throughout a zone of complete destruction extending for miles.
  • Nuclear weapons explosions have extreme and long-lasting environmental consequences, including disruption of the Earth’s climate and agricultural productivity.
  • What makes nuclear weapons uniquely abhorrent is the ionizing radiation they release as a result of the uncontrolled chain reaction of fissile materials. Exposure to ionizing radiation causes both acute (immediate) and long-term health effects.
  • There are numerous ways in which nuclear weapons cause extensive harm to health and the environment even if they are not used in war. The front end of the nuclear chain—the mining and processing of uranium that provides the fuel for nuclear weapons—has devastating health consequences for those who work in the mines and mills and for their families.
  • There is also an enormous diversion of resources into the research and development, production, and deployment of warheads and their delivery systems, at the expense of real human and social needs that are inexcusably underfunded. World spending on nuclear weapons surpasses $100 billion every year. By contrast, the Stockholm International Peace Research Institute has estimated that it would take $135 billion to fully achieve the Millennium Development Goals. Instead, each of the nine nuclear-weapons states is engaging in large, expensive programs to modernize its nuclear forces and to ensure that they will continue to endanger us all for decades to come.

Nuclear Famine: climate effects of regional nuclear war

Online Resource: The humanitarian impact of nuclear weapons (HINW)

IPPNW campaign kit: Banning Nuclear Weapons: The Humanitarian Facts

In-depth studies of nuclear weapons effects for researchers, journalists, and others needing detailed information

Nuclear Weapons Facts

Nuclear Weapons Facts

The 12.5-kiloton bomb detonated over Hiroshima decimated the city and created ground temperatures that reached about 7,000 degrees Celsius. Of the 76,000 buildings in the city, 92% were destroyed or damaged. There were more than 100,000 deaths and approximately 75,000 injuries among a population of nearly 250,000. Of the 298 physicians in the city, 270 died or were injured and 1,564 of 1,780 nurses died or were injured.

The 21-kiloton bomb detonated over Nagasaki three days later leveled 6.7 square kilometers (2.6 square miles). There were 75,000 immediate deaths and 75,000 injuries, and health consequences for the population of the city that were similar to those of Hiroshima.

The current situation

Today’s nuclear weapons are much larger and much more powerful. Nine nuclear-armed states possess more than 14,000 warheads—about 93% of them in the arsenals of the US and Russia—deployed on missiles, submarines, and aircraft. Thousands of them are ready to be launched on short notice. Scottish CND has estimated that the 40 nuclear warheads on a single Trident submarine, if targeted on Moscow, could kill more than five million people.

A regional nuclear war between India and Pakistan could kill 12 million people outright, injure another seven million, and cause global climate disruption and a “nuclear famine.” A nuclear war between the US and Russia could kill 200 million people or more, and cause a global “nuclear winter” with no survivors.

Find out what would happen if a nuclear bomb detonated in your city via this interactive calculator by the Outrider Foundation.

Physical effects of nuclear weapons

The physical effects of nuclear weapons include a heat (thermal) wave, a blast wave, an electromagnetic pulse, the release of ionizing radiation, and the production of radioactive isotopes in fallout.

Blast and burn effects 

Even a single nuclear explosion over a city can kill tens of thousands — even hundreds of thousands — of people immediately. Massive overpressures destroy most buildings; temperatures exceeding thousands of degrees Celsius incinerate all flammable materials; intense winds create firestorms. A nuclear war with weapons in existing arsenals could kill more people in a single day than were killed during the entire Second World War.

More about blast and burn effects of nuclear weapons

Radiation effects

Nuclear weapons release ionizing radiation as a result of the uncontrolled chain reaction of fissile materials. Exposure to radiation—including fallout from nuclear explosions—causes acute and long-term illnesses that are often deadly, as well as genetic and inter-generational health effects.

More about radiation effects of nuclear weapons

Environmental destruction

A limited, regional nuclear conflict involving only 100 Hiroshima-size nuclear weapons would severely disrupt the global climate and agriculture for two decades or more. The resulting food shortages would place at least two billion people at risk of starvation. The massive arsenals held by the US and Russia can create a nuclear winter, destroying Earth’s fundamental ecosystems, on which all life depends.

More about climate impacts of nuclear war, including nuclear famine

IPPNW study: Nuclear famine: two billion people at risk (PDF)

No meaningful response

Nuclear weapons eradicate the social infrastructure required for recovery from conflict. Roads and transportation systems, hospitals and pharmacies, fire fighting equipment, and communications would all lie in rubble throughout a zone of complete destruction extending for miles. The International Committee of the Red Cross and other major disaster relief agencies have said they would be unable to respond in any meaningful way to help the survivors of a nuclear war. 

More about futility of medical response to nuclear war

IPPNW video: Why an emergency response to a nuclear attack is impossible

Nuclear weapons violate international humanitarian law

Nuclear weapons are indiscriminate in their effects. They cannot distinguish between military and civilian targets, or between combatants and non-combatants. This is considered a violation of International Humanitarian Law (IHL), according to both the Geneva Conventions and the International Court of Justice (ICJ).

The Reaching Critical Will publication Unspeakable suffering: the humanitarian impact of nuclear weaponscontains essays on nuclear weapons and IHL

Physicians and Nuclear War

Physicians and Nuclear War

Physicians first confronted the medical consequences of the use of nuclear weapons while struggling to care for the victims of the US atomic bombings of Hiroshima and Nagasaki in 1945. A decade later, doctors found heightened levels of strontium 90 and iodine 131 in children and adults as a result of radioactive fallout from atmospheric nuclear weapons tests.

In 1962, a group of American physicians including Bernard Lown, Jack Geiger, and Victor Sidel documented the full range of medical consequences of a nuclear attack. Their research was published as a series of groundbreaking articles in the New England Journal of Medicine.

During the Cold War of the 1980s, IPPNW physicians engaged in a global education campaign about the medical consequences of nuclear war and warned the public and the leaders of the nuclear superpowers that the medical profession would be unable to provide effective care in the aftermath of a nuclear attack. That conclusion was echoed by the American Medical Association, the British Medical Association, the World Health Organization, and other leading medical bodies.

Our nuclear dangers have only increased in the 21st century, as more states have acquired nuclear weapons and the nuclear-armed states have refused to comply with their disarmament obligations. In 2007, IPPNW and the Royal Society of Medicine co-sponsored a major conference in London to review the current state of knowledge about nuclear weapons effects, including the impact on the global climate. That same year, IPPNW launched ICAN—the International Campaign to Abolish Nuclear Weapons.

ICAN made the humanitarian impact of nuclear weapons the centerpiece of its campaign for a treaty to prohibit them under international law—a treaty that was adopted by the United Nations in 2017 and that will enter into force on January 22, 2021, having been ratified by the required 50 states.

In awarding the 1985 Nobel Peace Prize to IPPNW, the Nobel Committee cited the work of physicians in “spreading authoritative information and creating an awareness of the catastrophic consequences of atomic warfare.” Three decades later, the Nobel Committee returned to this theme when, in 2017, it recognized ICAN’s efforts “to draw attention to the catastrophic humanitarian consequences of any use of nuclear weapons.”

Nuclear Weapons Abolition

Nuclear Weapons Abolition

IPPNW is the leading medical organization dedicated to the global elimination of nuclear weapons. Since the very beginning of the nuclear age, with the US atomic bombings of Hiroshima and Nagasaki, physicians have recognized that the devastating consequences of nuclear war can only be prevented if these weapons of mass destruction are abolished.

The Medical Evidence

In order to understand why nuclear weapons must be eliminated, you should learn about their unique characteristics and their consequences to health and our environment. You can begin with an overview of essential facts. Those looking for in-depth information can visit our archive of multimedia resources, which includes dozens of downloadable studies and reports on various aspects of nuclear weapons effects.


The role of physicians in educating the public about the medical consequences of nuclear weapons and nuclear war

The facts about nuclear weapons

The health and humanitarian impacts of nuclear weapons

Nuclear Famine: climate effects of regional nuclear war

Learn more about ICAN—the International Campaign to Abolish Nuclear Weapons

Explore IPPNW’s large collection of resources on nuclear weapons, nuclear war, and related topics, including books and scientific papers, journal articles, Powerpoint presentations, videos, and more.

Banning Nuclear Weapons: The Humanitarian Facts

An IPPNW Campaign Kit

An evidence-based understanding of the humanitarian impact of nuclear weapons has become the driving force behind a renewed State and civil society demand for effective action to prohibit and eliminate nuclear weapons. The facts about nuclear weapons and the consequences of their use were the subject of three international conferences starting in 2013—in Oslo, Nayarit, and Vienna. Those conferences—and a series of joint statements on the humanitarian impact of nuclear weapons submitted to the UN General Assembly—led in 2016 to a UNGA resolution authorizing negotiations on a new treaty to ban nuclear weapons. The Treaty on the Prohibition of Nuclear Weapons (TPNW) was negotiated and adopted by the UN in July 2017.

The facts about nuclear weapons—their unprecedented destructive power, their massive and indiscriminate medical and environmental effects, their capacity to wipe out everything that sustains life on Earth—have been extensively documented in hundreds of books, journal articles, and scientific papers. Campaigners for nuclear abolition are faced with the challenge of presenting the facts correctly and persuasively, and they must often do so in the few moments they have the attention of a government minister, a parliamentarian, a politician, a journalist, or a person on the street.

ICAN—the International Campaign to Abolish Nuclear Weapons—was launched by IPPNW in 2007, and received the 2017 Nobel Peace Prize for its work to achieve the TPNW.  ICAN and IPPNW have argued that the humanitarian threat posed by nuclear weapons requires both a treaty banning them and their elimination through the full implementation of that treaty.

The purpose of this kit is to provide ICAN campaigners—and all others working to prohibit and eliminate nuclear weapons—with the essential facts about the blast, burn, and radiation effects of nuclear weapons; the devastation they wreak upon the environment; and the inability of physicians to reach and treat the surviving victims of nuclear war; in language that is accessible, understandable, repeatable and, we hope, persuasive.