The Doomsday Clock has moved the closest to global catastrophe it has ever been - largely because of Russia's invasion of Ukraine and also the climate crisis. Now, a study finds five locations most likely to survive an apocalyptic nuclear winter.

If 2023 is the year the world starts to collapse, scientists think they know where you should head to survive.

The Doomsday Clock has moved the closest to global catastrophe it has ever been - largely because of Russia's invasion of Ukraine and also the climate crisis.

Now, researchers say Australia and New Zealand are among five island nations most likely to survive an apocalyptic nuclear winter.

The study, by the University of Otago and Adapt Research in New Zealand, looked at the impact of "a severe sun-reducing catastrophe" such as a nuclear war, super volcano or asteroid strike on global agricultural systems.

Researchers found Australia, New Zealand, Iceland, the Solomon Islands, and Vanuatu most capable of continuing to produce food despite the reduced sunlight and fall in temperatures - and help reboot a collapsed human civilisation.