What is the author's tone in the nonfiction book, This Changes Everything?

As a journalist, Klein presents a balanced account of the history of climate change and the debate that has been on-going for decades. She sticks with science and facts and provides the dialog of both sides of the debate.

Although she largely sides with the environmentalists who promote climate action, Klein presents an even tone and an obviously comprehensive reporting of all facets of the complex and controversial topic. There are statements made by conservatives who oppose climate action. It is a common belief among some conservatives that climate change is a hoax and a plot to overthrow democracy and replace it with Marist socialism. It is a direct quote, not a characterization by the author.

Some emotionalism is interjected into the work. Klein writes that she was trying to get pregnant for the first time during the five years she was working on the book. She went through some personal angst and tragedy along the way but finally had a healthy baby boy. She makes a comparison between having her son and the climate crisis. She empathized with Mother Earth who was fighting her adversaries to procreate and sustain life on earth with her own struggle to have a child.