"A movement of deregulation, it really concerns me, because we can see the direct correlation between fossil fuel practices, carbon emissions, the greenhouse effect and climate change as a whole", said CU Boulder student Mike Jacobs.
The world's leading climate scientists have warned there is only a dozen years for global warming to be kept to a maximum of 1.5ºC, beyond which even half a degree will significantly worsen the risks of drought, floods, extreme heat and poverty for hundreds of millions of people. Adults are not the only people in the world, and if they're building a future we don't want then we need to take action.
The main thing all the students emphasize is that climate change needs to be taken more seriously.
"We have proposed Greta Thunberg because if we do nothing to halt climate change it will be the cause of wars, conflict, and refugees", Norwegian politician Freddy André Øvstegård told worldwide news agency AFP.
She said she was "with Jacinda last night" and she had asked the prime minister what she would say to the people of Nelson.
Student protesters urge gov't to include youth reps in environmental bodies
"My parents came from Bangladesh which is a country severely affected by climate change", she says. Our generation grew up with the climate crisis and we will have to deal with it for the rest of our lives.
Swan Christian College student Connor Peroni, 15, said her generation would not be complacent in the destruction of the planet. Just last week, the City of Portland filed amicus briefs in support of two cases where youth are suing the government over climate change, Chernaik v. Brown and Juliana v.
'We are only seeing the beginning, ' Ms Thunberg tweeted recently.
Students will start to gather at City Hall at 10:30 a.m. on Friday and talks will begin at 11 a.m. Portland Public Schools sent out a letter to parents Thursday afternoon reminding them that any students who walk out will be marked absent.
UK youth strikes are being organised by a number of organisations including Youth Strike 4 Climate, UK Student Climate Network and the UK Youth Climate Coalition. Keiffer Cortez and Sophie O'Connor both cite Greta Thunberg as their inspiration.
"I think that what she stands for and how she takes it on board is very inspiring in that it's not all talk and we are trying to get action", Billie says.