The nuclear-armed and dependent states have been put on notice. They know the treaty jeopardises their claimed right to continue to threaten the planet.
Donald Trump avoided a major crisis with North Korea. But the North Korean nuclear issue remains unresolved as the country continues to develop its nuclear and ballistic capabilities.
Climate change is a true existential threat for small island nations, but the US has done little to help the Marshall Islands, which it administered for decades.
The hibakusha (survivors) of the 1945 bombings have been among the most tireless campaigners for the treaty. The Japanese government, however, has not supported it.
The threat of nuclear war has not diminished, despite the lessons learned from the Hiroshima and Nagasaki bombings in 1945.
British newspapers were very quick to see the horrific potential of this new weapon.
What if there was another nuclear incident in the US? A disaster management scholar looks back at the history of nuclear events to assess the risk.
Seventy-five years after the first nuclear detonation and nearly 30 years since testing was banned, the US is considering resuming live nuclear testing.
Other existential risks include the decline of natural resources (particularly water), human population growth beyond the Earth’s carrying capacity, and nuclear weapons.
The US could only safely use a fraction of its nuclear stockpile without harming Americans through an environmental event called 'nuclear autumn.'
Some of the major events in US-Iran relations highlight the differences between the nations' views, but others presented real opportunities for reconciliation.
Governments fail to imagine how worst-case scenarios can come about – much less plan for them. But there are things we can do.
The US has 50 nuclear bombs stored in Turkey. As tensions rise between the two countries, a look at how they got there and what might happen next.
How policy has shifted back and forth since 1945 over the fine line between nuclear energy and nuclear weapons.
At best, nuking a hurricane will do nothing, and at worst it will spread radioactive fallout around the world.
Nuclear threats are serious – but officials, the media and the public keep a close eye on them. There's less attention to the dangers of cyberattacks, which could cripple key utilities.
With the risk of a nuclear conflict seeming higher than ever, how much do EU citizens really know about nuclear weapons and their use? A new survey provides striking answers.
Now that South Africa no longer ascribes to a nuclear energy future, it is legitimate to consider what to do with its nuclear research facility.
Developing nuclear weapons requires technological and industrial capabilities that Australia simply does not have at the moment. The political will may be lacking, too.
Iran has announced it will breach the limits on uranium enrichment agreed under the 2015 nuclear deal, after the US turned its back on the agreement. What does that mean for Iran's nuclear program?