The movement was inspired by 16-year-old Swede Greta Thunberg, who spent all of last August protesting over climate change outside the Swedish parliament, and then when her school semester began, continued her protests on Fridays.
Suzie Brown, from the Australian Parents for Climate Action, says she can't think of a better reason for students to take a day off school.
Thunberg spoke at the United Nations Climate Change Conference in Poland this past December where she told lawmakers they were "not mature enough to tell it like it is". With little action from the national government, time is running out, and many teens are fearful for both the present and future condition of the climate.
Students like Marlow Baines point to Wednesday's historic storm in Colorado as an example of climate change's effects.
A group of year 12 students from Nelson College for Girls said their parents and their principal supported their choice to "strike" from school.
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He immediately went behind the goal where he picked up a bag containing a mask of the popular Marvel character Black Panther. Although they have no more top-six teams to face in the Premier League this season, they play more away than home fixtures.
She said she was "with Jacinda last night" and she had asked the prime minister what she would say to the people of Nelson.
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.
Thunberg said on Twitter that nearly 100 countries will be involved. "The strikes so far have students in a hundred countries confirmed participating around the globe", Carla Galea, the KSU President, said today.
"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. However, we do not feel that the now planned actions to address climate change are sufficient or are being implemented with the necessary urgency.
But Environment Secretary Michael Gove backed the protesting children, saying in a video: "Dear school climate strikers, we agree". "But keep doing everything that you can to bring people with you because we cannot do this alone".
He is helping organize a climate strike because he wants to ensure that future generations will experience the island's natural beauty and clean air.