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.
Demonstrators in Ann Arbor Friday called the Green New Deal the responsible way to spark change and protect children. The group says they will likely all face unexcused absences, or if their parents choose to call in, excused absences.
"The school haven't let us go, they say there's consequences but it's more important than school attendance to come here and protest".
In Denver, 12 year-old Haven Coleman is a co-founder and co-director of the organization planning the first school strikes in the U.S.
"We're protesting again because the reaction last time was not what we were looking for".
Nine councils have now indicated in response to letters from Scottish Green MSPs that they won't pursue punitive action against young people taking part. "Obviously, one strike isn't going to change everything, but this isn't the last strike", Hirsi said.
"I don't think any student is going to miss out on their career because they missed a few hours of school today", he said.
"There is not sufficient and effective policy to keep the UK's carbon targets below where they need to be", he said.
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"We still have everything in our own hands". Fossil fuels must stop being extracted, we must change politics, the current economy and all aspects of our current lifestyle-a system change. "I believe more in unicorns than in the will of politicians to save the planet", said another. Now is the time to speak clearly".
"If you think that we should be in school (rather than out on the streets protesting) then we suggest that you should take our place in the streets, striking from your work, or better yet join us so we can speed up the process".
"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. But the climate crisis has already been solved. We have the solution and the facts and the data and the science.
"All we have to do is to wake up and change".
"Politicians have known the truth about climate change", the students wrote, "and they've willingly handed over our future to profiteers whose search for quick cash threatens our very existence". How can we just go on living our normal lives and doing business as usual when our leaders are doing nothing?
"Education is important, but this is more important".