After a year of climate catastrophes, we take a look at the history of environmental activism in America. In his new book "Silent Spring Revolution," Douglas Brinkley calls attention to the climate change movement by tracing the work of pioneering environmental activists in the 1960s. He joins Walter Isaacson to discuss this environmental awakening. Originally aired on November 28, 2022 ---------------------------------------------------------------------------------------------------------------------------------------- Major support for Amanpour and Company is provided by the Anderson Family Charitable Fund, Sue and Edgar Wachenheim, III, Candace King Weir, Jim Attwood and Leslie Williams, Mark J. Blechner, Bernard and Denise Schwartz, Koo and Patricia Yuen, the Leila and Mickey Straus Family Charitable Trust, Barbara Hope Zuckerberg, Jeffrey Katz and Beth Rogers, the Filomen M. D’Agostino Foundation and Mutual of America. Subscribe to the Amanpour and Company. channel here: https://bit.ly/2EMIkTJ Subscribe to our daily newsletter to find out who's on each night: http://www.pbs.org/wnet/amanpour-and-company/newsletter/ For more from Amanpour and Company, including full episodes, click here: https://to.pbs.org/2NBFpjf Like Amanpour and Company on Facebook: https://bit.ly/2HNx3EF Follow Amanpour and Company on Twitter: https://bit.ly/2HLpjTI Watch Amanpour and Company weekdays on PBS (check local listings). Amanpour and Company features wide-ranging, in-depth conversations with global thought leaders and cultural influencers on the issues and trends impacting the world each day, from politics, business and technology to arts, science and sports. Christiane Amanpour leads the conversation on global and domestic news from London with contributions by prominent journalists Walter Isaacson, Michel Martin, Alicia Menendez and Hari Sreenivasan from the Tisch WNET Studios at Lincoln Center in New York City. #amanpourpbs