. ♪ >> naomi klein is here. she is a writer and activist and has taken on the global impact of economics in previous books. her new book, "this changes everything," is a sweeping take on climate change. she does not think carbon is the main problem, but capitalism as we know it. time magazine says this may be the first truly honest book ever written about climate change. welcome. >> good to see you. >> you said this the hardest book you ever had to write? >> anyone who really dives deep into climate science and the state of this threat, it is easy to get overwhelmed by the scale of it. because the book is not just looking at climate science but looking at tension between our economic model, which is built to pursue short-term growth, and our planetary system, which needs us to contract our use of finite resources, particularly fossil fuels, it was overwhelming. it became easier to write as their started to be more of a grassroots response, more of a climate movement, that emerged. the book came out the same week
