The movement started last August, when a 15-year-old girl in Sweden named Greta Thunberg began refusing to go to school and instead demonstrated in front of Sweden's parliament to call attention to climate change after Sweden experienced its hottest summer on record, according to The Guardian.
"I have a younger sister in junior high, and my mom has organized to bring my sister and a couple of her classmates down to the clock tower", says organizer Ivan Andreou.
At a World Economic Forum meeting in Davos, Switzerland, in January, she ended her speech by telling a silenced room that she wants leaders to "behave like our house is on fire, because it is".
"We are calling on all students to join us to take action on our future!"
"We are striking because marginalized communities across our nation - especially communities of color, disabled communities, and low- income communities are already disproportionately impacted by climate change".
Young Derry students at a number of Derry schools will tomorrow leave their classrooms in a staged "strike" to attend a protest on climate change.
Swedish climate campaigner Greta Thunberg.
Students play with an inflatable globe as they march to demand action on climate change in Rome Friday
After her first year 11 maths exam, Aisheeya will be getting the train from Western Sydney to Town Hall Station to take part in Sydney's instalment of the strikes.
Schoolchildren, parents and other supporters were expected to hold similar demonstrations in 100 countries on Friday.
"This is young people taking the reins and realising that they do have people power, that's really awesome", Abigail O'Regan, 20, told AFP in the New Zealand capital. "We're here to say we're watching, we see what you're doing - and it's not okay". "Everyone should be scared", she said.
Morning rain cleared in time for the masses to come together at 12.30pm, all with the same goal - to support an worldwide movement for governments to make changes towards preserving the planet.
"If action isn't taken then this movement is only going to grow and continue as more people get frustrated by the inaction".
"And we stand with you, as a council, as well".
"They talk about our age, our looks and so on", she continued.
But Tully has been on the trail of climate activism for some time.