Greta Thunberg, geb. 2003, startete im August 2018 einen Schulstreik für das Klima vor dem schwedischen Parlament, der sich seitdem auf der ganzen Welt verbreitet hat.
Es kommen zu Wort: Abrahm Lustgarten, Adriana de Palma, Alexander Popp, Alexandra Urisman Otto, Alice Garvey, Alice Larkin, Amitav Ghosh, Ana M. Vicedo-Cabrera, Andy Purvis, Annie Lowrey, Ayana Elizabeth Johnson, Ayisha Siddiqa, Beth Shapiro, Beverly Law, Bill McKibben, Bjørn H. Samset, Carlos Nobre, Christian Brand, Dave Goulson, David Wallace-Wells, Derek Macfadden, Disha A. Ravi, Drew Shindell, Elin Anna Labba, Elizabeth Kolbert, Erica Chenoweth, Eugene Linden, Felipe J. Colón-González, Friederike Otto, George Monbiot, Gidon Eshel, Glen Peters, Hans-Otto Pörtner, Hilda Flavia Nakabuye, Hindou Oumarou Ibrahim, Ina Maria Shikongo, Isak Stoddard, Jacqueline Patterson, Jason Hickel, Jennie C. Stephens, Jennifer A. Francis, Jennifer Soong, Jillian Anable, Joëlle Gergis, Johan Rockström, John Barrett, John Brownstein, Julia Arieira, Karin Kvale, Karl-Heinz Erb, Kate Marvel, Kate Raworth, Katharine Hayhoe, Keith W. Larson, Ketan Joshi, Kevin Anderson, Laura Verónica Muñoz, Lorraine Whitmarsh, Lucas Chancel, Margaret Atwood, Marshall Burke, Mauricio Santillana, Michael Clark, Michael Mann, Michael Oppenheimer, Michael Taylor, Mike Berners-Lee, Mitzi Jonelle Tan, Naomi Klein, Naomi Oreskes, Nathália Nascimento, Nicholas Stern, Nicki Becker, Niclas Hällström, Nina Schrank, Olúfé.mi O. Táíwò, Örjan Gustafsson, Paulo Ceppi, Per Espen Stoknes, Peter Brannen, Peter H. Gleick, Rebecca Wrigley, Ricarda Winkelmann, Rob Jackson, Robin Wall Kimmerer, Saleemul Huq, Samuel S. Myers, Sarah McGough, Seth Klein, Silpa Kaza, Simone Gingrich, Solomon Hsiang, Sonia Guajajara, Sonja Vermeulen, Stefan Rahmstorf, Stuart Capstick, Sunita Narain, Taikan Oki, Tamsin Edwards, Tedros Adhanom Ghebreyesus, Thomas Piketty, Wanjira Mathai, Zeke Hausfather