Naomi Klein, Bill McKibben and others.

   On 20 September, at the request of the young people who have been staging school strikes around the world, we’re walking out of our workplaces and homes to spend the day demanding action on the climate crisis, the greatest existential threat that all of us face. It’s a one-day climate strike, if you will – and it will not be the last. This is going to be the beginning of a week of action all over the world. And we hope to make it a turning point in history.We hope others will join us: that people will leave their offices, their farms, their factories; that candidates will step off the campaign trail and football stars will leave the pitch; that movie actors will scrub off their makeup and teachers lay down their chalk; that cooks will close their restaurants and bring meals to protests; that pensioners too will break their daily routines and join together in sending the one message our leaders must hear: day by day, a business as usual approach is destroying the chance for a healthy, safe future on our planet.

    Save the Date: Details of a local action will follow in the coming months...

Others who have already signed on include:

Margaret Atwood, Geneviève Azam, Tom Ballard, Fadel Barro, Nnimmo Bassey, May Boeve, Patrick Bond, Mike Brune, Nicola Bullard, Sharan Burrow, Valérie Cabanes, Rachel Carmona, Dr Craig Challen, Noam Chomsky, Maxime Combes, Thomas Coutrot, Cyril Dion, Tasneem Essop, Christiana Figueres, Prof Tim Flannery, Nancy Fraser, KC Golden, Tom BK Goldtooth, Maggie Gyllenhaal, Dr John Hewson, John Holloway, Prof Lesley Hughes, Tomás Insua, Satvir Kaur, Barbara Kingsolver, Winona LaDuke, Jenni Laiti, Bruno Latour, Annie Leonard, Michael Mann, Gina McCarthy, Heather McGhee, Luca Mercalli, Moema Miranda, Jennifer Morgan, Tadzio Müller, Kumi Naidoo, Mohamed Nasheed, Carlo Petrini, Dr Anne Poelina, Mark Ruffalo, Peter Sarsgaard, Dr Vandana Shiva, Rebecca Solnit, Gus Speth, Prof Will Steffen, Tom Steyer, Chris Taylor, Terry Tempest-Williams, Aurélie Trouvé, Farhana Yamin, Lennox Yearwood are signatories to this article