On a Friday last August, schoolgirl activist Greta Thunberg held the first school climate strike, outside Sweden's parliament.
The 16-year old started a weekly vigil in Stockholm, demanding faster action to cut greenhouse gas emissions.
She set off a world-wide movement and on Friday kids around the globe took part in climate strikes in over 2000 locations.
Latest update say:— Greta Thunberg (@GretaThunberg) March 15, 2019
2052 places in 123 countries on all continents, including Antarctica.
So, the question is:
What will you do on March 15 2019? https://t.co/ROmtFMrj6Y#schoolstrike4climate #FridaysForFurture #climatestrike #WhateverItTakes
(picture from Sydney today) pic.twitter.com/oFr6IryCnk
School children in South Africa also turned out in various cities.
Pippa Hudson got 'goosebumps' listening to caller Fabio describing the scene outside parliament in Cape Town.
Kids started streaming in from every single corner around parliament. There's placards, there's music, there's screaming, there's shouting, there's hooting. There's the future, right here.— Fabio - Caller
It's all centred around our climate, there's no Planet B.— Fabio - Caller
Kids are just so creative and so inspiring, it's amazing - 'if you adults can't do it, we will'. That's one of the common themes going around.— Fabio - Caller
Listen to more of Fabian's eyewitness account: