Treaties banning biological and chemical weapons are in place, and the path is clear to remove nuclear weapons too. Lethal autonomous weapons (killer robots) should be next.
Dozens of reefs around the world have bleached in the past three years, of which the Great Barrier Reef was merely the most high-profile.
AAP Image/WWF AUSTRALIA, BIOPIXEL
Amid fears for the world's coral reefs, the UN World Heritage Committee has issued its most wide-ranging statement so far on protecting heritage sites from climate. But the problem doesn't end there.
Kim Jong-un and scientists applaud after the successful test of intercontinental ballistic missile Hwasong-14.
KCNA/Reuters
The United Nations has had many chances to deal decisively with the endemic sexual and gender based violence against children in its missions. But the problem persists. What will it take to stop it?
Ji-Young Lee, American University School of International Service
North and South Korea explained in four questions and answers.
Australia’s Purnululu National Park is a World Heritage wilderness, but many other pristine places lack similar protection.
AAP Image/Tourism Australia
Wilderness areas are vitally important, yet are largely overlooked by the United Nations' list of natural World Heritage. This week's meeting in Poland is a chance to redress that balance.
There are refugees, there are migrants and then there are the millions of people who live in legal limbo because they defy easy categorisation. But everyone is just looking for a place to call home.
President Donald Trump speaks at the White House.
AP Photo/Alex Brandon
The rule of law can take on different meanings depending whom you ask and where you are – but in the US it pretty much means one thing.
Unlike every president who followed him, George H.W. Bush had a background in foreign policy. In 1972, Bush was serving as U.S. ambassador to the U.N.
AP Photo/Dave Pickoff
James Goldgeier, American University School of International Service
The first President Bush had some impressive foreign policies wins, but could he be best remembered for getting the US entangled in Iraq?
On June 1, 2017, President Donald Trump announced that he would take the U.S. out of the Paris Agreement, and that he could negotiate a “better deal”.
Saul Loeb/AFP
On June 1, Donald Trump announced that he would take the US out of the Paris climate agreement because it was "unfair" to the US. An economic analysis indicates otherwise.
The UN building … but what’s really going on inside?
Shutterstock
If it were a film, viewers would say it's too far-fetched to be believable.
UN member states are holding consultations as part of the development of a Global Compact for Safe, Orderly and Regular Migration.
Eduardo Munoz/Reuters
In a changing and unsettled world, migration can be a greater-than-ever contributor to development for communities of origin, destination areas, and for the migrants themselves.
Sania Nishtar, David Nabarro and Tedros Adhanom Ghebreyesus are the final three candidates.
Pierre Albouy/Reuters
The Democratic Republic of Congo desperately needs a peaceful election but with the UN threatening to scale back its DRC mission, the likelihood of a successful poll is being threatened
Trips to Antartica are part of the ‘last chance’ tourism to environmentally fragile places.
Shutterstock
According to 2016 rankings, Somalia is the most fragile state in the world, worse off even than Syria. But there are reasons to believe things will improve.
The treaty to stop the proliferation of nuclear weapons has been exceptionally successful. Only nine states have them. Now, efforts are underway to completely rid the world of them.
Senior Lecturer in Peace and Conflict Studies and International Relations; Research Director at the Asia-Pacific Centre for the Responsibility to Protect, The University of Queensland