Students worldwide are taking to the streets to demand more action against climate change after an estimated 300,000 Australians gathered at rallies around the country.
As Friday began around the world, rallies spread across Asia into Africa and Europe, with school students joined by supporters of all ages.
The global day of action was called ahead of a United Nations climate summit in New York next week.
In Nigeria, 37-year-old Seye Adegbpye, 37, told the BBC she joined the climate change protest in Lagos as she had noticed water levels getting higher and flooding getting worse every year.
"The city is also getting hotter and hotter," she said.
"Even though there aren't many of us here today, I'm hoping our Government will hear our requests and implement policies such as increasing the number of trees that are planted around the city."
Banashree Thapa, 23, joined climate protests in Delhi, outside the Lodhi garden.
"I am the daughter of a forest ranger but what will he protect if there is nothing left to protect?" she asked the BBC.
"This is beyond climate change," she says. "This is nature's wrath. And it's coming for us. That's what brought me here."
