Thousands of school students across 150 countries will walk out of their classrooms on Friday to demand action on climate change.
"We didn't light it, but we're trying to fight it," read a sign carried by a student protesting in Sydney.
The Global Climate Strike, led by Swedish teenage activist Greta Thunberg, is happening three days before the UN summit in New York.
Students across 4,000 locations around the world will join forces to urge world leaders and policymakers to do more to stop an environmental catastrophe.
US and Iran exchange attacks as lull in war appears over
Malta court clears businessman over murder of investigative journalist
Kuwait confirms no injuries after Iranian drone hits residential complex
Nepal flood rescue hopes dim as China restores access to Tibet disaster zone
At least 21 die in bus accident in Egypt's South Sinai, ministry says
